| //===- llvm/unittest/ADT/APFloat.cpp - APFloat unit tests ---------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/APFloat.h" |
| #include "llvm/ADT/APSInt.h" |
| #include "llvm/ADT/SmallString.h" |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include "gtest/gtest.h" |
| #include <cmath> |
| #include <ostream> |
| #include <string> |
| |
| using namespace llvm; |
| |
| static double convertToDoubleFromString(const char *Str) { |
| llvm::APFloat F(0.0); |
| F.convertFromString(Str, llvm::APFloat::rmNearestTiesToEven); |
| return F.convertToDouble(); |
| } |
| |
| static std::string convertToString(double d, unsigned Prec, unsigned Pad) { |
| llvm::SmallVector<char, 100> Buffer; |
| llvm::APFloat F(d); |
| F.toString(Buffer, Prec, Pad); |
| return std::string(Buffer.data(), Buffer.size()); |
| } |
| |
| namespace { |
| |
| TEST(APFloatTest, isSignaling) { |
| // We test qNaN, -qNaN, +sNaN, -sNaN with and without payloads. *NOTE* The |
| // positive/negative distinction is included only since the getQNaN/getSNaN |
| // API provides the option. |
| APInt payload = APInt::getOneBitSet(4, 2); |
| EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, false).isSignaling()); |
| EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, true).isSignaling()); |
| EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, false, &payload).isSignaling()); |
| EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, true, &payload).isSignaling()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isSignaling()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true).isSignaling()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false, &payload).isSignaling()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true, &payload).isSignaling()); |
| } |
| |
| TEST(APFloatTest, next) { |
| |
| APFloat test(APFloat::IEEEquad, APFloat::uninitialized); |
| APFloat expected(APFloat::IEEEquad, APFloat::uninitialized); |
| |
| // 1. Test Special Cases Values. |
| // |
| // Test all special values for nextUp and nextDown perscribed by IEEE-754R |
| // 2008. These are: |
| // 1. +inf |
| // 2. -inf |
| // 3. getLargest() |
| // 4. -getLargest() |
| // 5. getSmallest() |
| // 6. -getSmallest() |
| // 7. qNaN |
| // 8. sNaN |
| // 9. +0 |
| // 10. -0 |
| |
| // nextUp(+inf) = +inf. |
| test = APFloat::getInf(APFloat::IEEEquad, false); |
| expected = APFloat::getInf(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isInfinity()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+inf) = -nextUp(-inf) = -(-getLargest()) = getLargest() |
| test = APFloat::getInf(APFloat::IEEEquad, false); |
| expected = APFloat::getLargest(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-inf) = -getLargest() |
| test = APFloat::getInf(APFloat::IEEEquad, true); |
| expected = APFloat::getLargest(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-inf) = -nextUp(+inf) = -(+inf) = -inf. |
| test = APFloat::getInf(APFloat::IEEEquad, true); |
| expected = APFloat::getInf(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isInfinity() && test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(getLargest()) = +inf |
| test = APFloat::getLargest(APFloat::IEEEquad, false); |
| expected = APFloat::getInf(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isInfinity() && !test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(getLargest()) = -nextUp(-getLargest()) |
| // = -(-getLargest() + inc) |
| // = getLargest() - inc. |
| test = APFloat::getLargest(APFloat::IEEEquad, false); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.fffffffffffffffffffffffffffep+16383"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(!test.isInfinity() && !test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-getLargest()) = -getLargest() + inc. |
| test = APFloat::getLargest(APFloat::IEEEquad, true); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.fffffffffffffffffffffffffffep+16383"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-getLargest()) = -nextUp(getLargest()) = -(inf) = -inf. |
| test = APFloat::getLargest(APFloat::IEEEquad, true); |
| expected = APFloat::getInf(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isInfinity() && test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(getSmallest()) = getSmallest() + inc. |
| test = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x0.0000000000000000000000000002p-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(getSmallest()) = -nextUp(-getSmallest()) = -(-0) = +0. |
| test = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382"); |
| expected = APFloat::getZero(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isZero() && !test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-getSmallest()) = -0. |
| test = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382"); |
| expected = APFloat::getZero(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isZero() && test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-getSmallest()) = -nextUp(getSmallest()) = -getSmallest() - inc. |
| test = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x0.0000000000000000000000000002p-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(qNaN) = qNaN |
| test = APFloat::getQNaN(APFloat::IEEEquad, false); |
| expected = APFloat::getQNaN(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(qNaN) = qNaN |
| test = APFloat::getQNaN(APFloat::IEEEquad, false); |
| expected = APFloat::getQNaN(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(sNaN) = qNaN |
| test = APFloat::getSNaN(APFloat::IEEEquad, false); |
| expected = APFloat::getQNaN(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opInvalidOp); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(sNaN) = qNaN |
| test = APFloat::getSNaN(APFloat::IEEEquad, false); |
| expected = APFloat::getQNaN(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(true), APFloat::opInvalidOp); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(+0) = +getSmallest() |
| test = APFloat::getZero(APFloat::IEEEquad, false); |
| expected = APFloat::getSmallest(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+0) = -nextUp(-0) = -getSmallest() |
| test = APFloat::getZero(APFloat::IEEEquad, false); |
| expected = APFloat::getSmallest(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-0) = +getSmallest() |
| test = APFloat::getZero(APFloat::IEEEquad, true); |
| expected = APFloat::getSmallest(APFloat::IEEEquad, false); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-0) = -nextUp(0) = -getSmallest() |
| test = APFloat::getZero(APFloat::IEEEquad, true); |
| expected = APFloat::getSmallest(APFloat::IEEEquad, true); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // 2. Binade Boundary Tests. |
| |
| // 2a. Test denormal <-> normal binade boundaries. |
| // * nextUp(+Largest Denormal) -> +Smallest Normal. |
| // * nextDown(-Largest Denormal) -> -Smallest Normal. |
| // * nextUp(-Smallest Normal) -> -Largest Denormal. |
| // * nextDown(+Smallest Normal) -> +Largest Denormal. |
| |
| // nextUp(+Largest Denormal) -> +Smallest Normal. |
| test = APFloat(APFloat::IEEEquad, "0x0.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.0000000000000000000000000000p-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-Largest Denormal) -> -Smallest Normal. |
| test = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.0000000000000000000000000000p-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-Smallest Normal) -> -LargestDenormal. |
| test = APFloat(APFloat::IEEEquad, |
| "-0x1.0000000000000000000000000000p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffffffffp-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+Smallest Normal) -> +Largest Denormal. |
| test = APFloat(APFloat::IEEEquad, |
| "+0x1.0000000000000000000000000000p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "+0x0.ffffffffffffffffffffffffffffp-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // 2b. Test normal <-> normal binade boundaries. |
| // * nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1. |
| // * nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1. |
| // * nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary. |
| // * nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary. |
| |
| // nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1. |
| test = APFloat(APFloat::IEEEquad, "-0x1p+1"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffffffffp+0"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1. |
| test = APFloat(APFloat::IEEEquad, "0x1p+1"); |
| expected = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp+0"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary. |
| test = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp+0"); |
| expected = APFloat(APFloat::IEEEquad, "0x1p+1"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary. |
| test = APFloat(APFloat::IEEEquad, "-0x1.ffffffffffffffffffffffffffffp+0"); |
| expected = APFloat(APFloat::IEEEquad, "-0x1p+1"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // 2c. Test using next at binade boundaries with a direction away from the |
| // binade boundary. Away from denormal <-> normal boundaries. |
| // |
| // This is to make sure that even though we are at a binade boundary, since |
| // we are rounding away, we do not trigger the binade boundary code. Thus we |
| // test: |
| // * nextUp(-Largest Denormal) -> -Largest Denormal + inc. |
| // * nextDown(+Largest Denormal) -> +Largest Denormal - inc. |
| // * nextUp(+Smallest Normal) -> +Smallest Normal + inc. |
| // * nextDown(-Smallest Normal) -> -Smallest Normal - inc. |
| |
| // nextUp(-Largest Denormal) -> -Largest Denormal + inc. |
| test = APFloat(APFloat::IEEEquad, "-0x0.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x0.fffffffffffffffffffffffffffep-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+Largest Denormal) -> +Largest Denormal - inc. |
| test = APFloat(APFloat::IEEEquad, "0x0.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x0.fffffffffffffffffffffffffffep-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(+Smallest Normal) -> +Smallest Normal + inc. |
| test = APFloat(APFloat::IEEEquad, "0x1.0000000000000000000000000000p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.0000000000000000000000000001p-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-Smallest Normal) -> -Smallest Normal - inc. |
| test = APFloat(APFloat::IEEEquad, "-0x1.0000000000000000000000000000p-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.0000000000000000000000000001p-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // 2d. Test values which cause our exponent to go to min exponent. This |
| // is to ensure that guards in the code to check for min exponent |
| // trigger properly. |
| // * nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382 |
| // * nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) -> |
| // -0x1p-16381 |
| // * nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16382 |
| // * nextDown(0x1p-16382) -> 0x1.ffffffffffffffffffffffffffffp-16382 |
| |
| // nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382 |
| test = APFloat(APFloat::IEEEquad, "-0x1p-16381"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffffffffp-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) -> |
| // -0x1p-16381 |
| test = APFloat(APFloat::IEEEquad, "-0x1.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, "-0x1p-16381"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16381 |
| test = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp-16382"); |
| expected = APFloat(APFloat::IEEEquad, "0x1p-16381"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(0x1p-16381) -> 0x1.ffffffffffffffffffffffffffffp-16382 |
| test = APFloat(APFloat::IEEEquad, "0x1p-16381"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.ffffffffffffffffffffffffffffp-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // 3. Now we test both denormal/normal computation which will not cause us |
| // to go across binade boundaries. Specifically we test: |
| // * nextUp(+Denormal) -> +Denormal. |
| // * nextDown(+Denormal) -> +Denormal. |
| // * nextUp(-Denormal) -> -Denormal. |
| // * nextDown(-Denormal) -> -Denormal. |
| // * nextUp(+Normal) -> +Normal. |
| // * nextDown(+Normal) -> +Normal. |
| // * nextUp(-Normal) -> -Normal. |
| // * nextDown(-Normal) -> -Normal. |
| |
| // nextUp(+Denormal) -> +Denormal. |
| test = APFloat(APFloat::IEEEquad, |
| "0x0.ffffffffffffffffffffffff000cp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x0.ffffffffffffffffffffffff000dp-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+Denormal) -> +Denormal. |
| test = APFloat(APFloat::IEEEquad, |
| "0x0.ffffffffffffffffffffffff000cp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x0.ffffffffffffffffffffffff000bp-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-Denormal) -> -Denormal. |
| test = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffff000cp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffff000bp-16382"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-Denormal) -> -Denormal |
| test = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffff000cp-16382"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x0.ffffffffffffffffffffffff000dp-16382"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(+Normal) -> +Normal. |
| test = APFloat(APFloat::IEEEquad, |
| "0x1.ffffffffffffffffffffffff000cp-16000"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.ffffffffffffffffffffffff000dp-16000"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(+Normal) -> +Normal. |
| test = APFloat(APFloat::IEEEquad, |
| "0x1.ffffffffffffffffffffffff000cp-16000"); |
| expected = APFloat(APFloat::IEEEquad, |
| "0x1.ffffffffffffffffffffffff000bp-16000"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(!test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextUp(-Normal) -> -Normal. |
| test = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffff000cp-16000"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffff000bp-16000"); |
| EXPECT_EQ(test.next(false), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| // nextDown(-Normal) -> -Normal. |
| test = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffff000cp-16000"); |
| expected = APFloat(APFloat::IEEEquad, |
| "-0x1.ffffffffffffffffffffffff000dp-16000"); |
| EXPECT_EQ(test.next(true), APFloat::opOK); |
| EXPECT_TRUE(!test.isDenormal()); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| } |
| |
| TEST(APFloatTest, FMA) { |
| APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven; |
| |
| { |
| APFloat f1(14.5f); |
| APFloat f2(-14.5f); |
| APFloat f3(225.0f); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(14.75f, f1.convertToFloat()); |
| } |
| |
| { |
| APFloat Val2(2.0f); |
| APFloat f1((float)1.17549435e-38F); |
| APFloat f2((float)1.17549435e-38F); |
| f1.divide(Val2, rdmd); |
| f2.divide(Val2, rdmd); |
| APFloat f3(12.0f); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(12.0f, f1.convertToFloat()); |
| } |
| |
| // Test for correct zero sign when answer is exactly zero. |
| // fma(1.0, -1.0, 1.0) -> +ve 0. |
| { |
| APFloat f1(1.0); |
| APFloat f2(-1.0); |
| APFloat f3(1.0); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| EXPECT_TRUE(!f1.isNegative() && f1.isZero()); |
| } |
| |
| // Test for correct zero sign when answer is exactly zero and rounding towards |
| // negative. |
| // fma(1.0, -1.0, 1.0) -> +ve 0. |
| { |
| APFloat f1(1.0); |
| APFloat f2(-1.0); |
| APFloat f3(1.0); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmTowardNegative); |
| EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| } |
| |
| // Test for correct (in this case -ve) sign when adding like signed zeros. |
| // Test fma(0.0, -0.0, -0.0) -> -ve 0. |
| { |
| APFloat f1(0.0); |
| APFloat f2(-0.0); |
| APFloat f3(-0.0); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| } |
| |
| // Test -ve sign preservation when small negative results underflow. |
| { |
| APFloat f1(APFloat::IEEEdouble, "-0x1p-1074"); |
| APFloat f2(APFloat::IEEEdouble, "+0x1p-1074"); |
| APFloat f3(0.0); |
| f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| } |
| |
| // Test x87 extended precision case from http://llvm.org/PR20728. |
| { |
| APFloat M1(APFloat::x87DoubleExtended, 1.0); |
| APFloat M2(APFloat::x87DoubleExtended, 1.0); |
| APFloat A(APFloat::x87DoubleExtended, 3.0); |
| |
| bool losesInfo = false; |
| M1.fusedMultiplyAdd(M1, A, APFloat::rmNearestTiesToEven); |
| M1.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo); |
| EXPECT_FALSE(losesInfo); |
| EXPECT_EQ(4.0f, M1.convertToFloat()); |
| } |
| } |
| |
| TEST(APFloatTest, MinNum) { |
| APFloat f1(1.0); |
| APFloat f2(2.0); |
| APFloat nan = APFloat::getNaN(APFloat::IEEEdouble); |
| |
| EXPECT_EQ(1.0, minnum(f1, f2).convertToDouble()); |
| EXPECT_EQ(1.0, minnum(f2, f1).convertToDouble()); |
| EXPECT_EQ(1.0, minnum(f1, nan).convertToDouble()); |
| EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble()); |
| } |
| |
| TEST(APFloatTest, MaxNum) { |
| APFloat f1(1.0); |
| APFloat f2(2.0); |
| APFloat nan = APFloat::getNaN(APFloat::IEEEdouble); |
| |
| EXPECT_EQ(2.0, maxnum(f1, f2).convertToDouble()); |
| EXPECT_EQ(2.0, maxnum(f2, f1).convertToDouble()); |
| EXPECT_EQ(1.0, maxnum(f1, nan).convertToDouble()); |
| EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble()); |
| } |
| |
| TEST(APFloatTest, Denormal) { |
| APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven; |
| |
| // Test single precision |
| { |
| const char *MinNormalStr = "1.17549435082228750797e-38"; |
| EXPECT_FALSE(APFloat(APFloat::IEEEsingle, MinNormalStr).isDenormal()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEsingle, 0.0).isDenormal()); |
| |
| APFloat Val2(APFloat::IEEEsingle, 2.0e0); |
| APFloat T(APFloat::IEEEsingle, MinNormalStr); |
| T.divide(Val2, rdmd); |
| EXPECT_TRUE(T.isDenormal()); |
| } |
| |
| // Test double precision |
| { |
| const char *MinNormalStr = "2.22507385850720138309e-308"; |
| EXPECT_FALSE(APFloat(APFloat::IEEEdouble, MinNormalStr).isDenormal()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEdouble, 0.0).isDenormal()); |
| |
| APFloat Val2(APFloat::IEEEdouble, 2.0e0); |
| APFloat T(APFloat::IEEEdouble, MinNormalStr); |
| T.divide(Val2, rdmd); |
| EXPECT_TRUE(T.isDenormal()); |
| } |
| |
| // Test Intel double-ext |
| { |
| const char *MinNormalStr = "3.36210314311209350626e-4932"; |
| EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended, MinNormalStr).isDenormal()); |
| EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended, 0.0).isDenormal()); |
| |
| APFloat Val2(APFloat::x87DoubleExtended, 2.0e0); |
| APFloat T(APFloat::x87DoubleExtended, MinNormalStr); |
| T.divide(Val2, rdmd); |
| EXPECT_TRUE(T.isDenormal()); |
| } |
| |
| // Test quadruple precision |
| { |
| const char *MinNormalStr = "3.36210314311209350626267781732175260e-4932"; |
| EXPECT_FALSE(APFloat(APFloat::IEEEquad, MinNormalStr).isDenormal()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEquad, 0.0).isDenormal()); |
| |
| APFloat Val2(APFloat::IEEEquad, 2.0e0); |
| APFloat T(APFloat::IEEEquad, MinNormalStr); |
| T.divide(Val2, rdmd); |
| EXPECT_TRUE(T.isDenormal()); |
| } |
| } |
| |
| TEST(APFloatTest, Zero) { |
| EXPECT_EQ(0.0f, APFloat(0.0f).convertToFloat()); |
| EXPECT_EQ(-0.0f, APFloat(-0.0f).convertToFloat()); |
| EXPECT_TRUE(APFloat(-0.0f).isNegative()); |
| |
| EXPECT_EQ(0.0, APFloat(0.0).convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(-0.0).convertToDouble()); |
| EXPECT_TRUE(APFloat(-0.0).isNegative()); |
| } |
| |
| TEST(APFloatTest, DecimalStringsWithoutNullTerminators) { |
| // Make sure that we can parse strings without null terminators. |
| // rdar://14323230. |
| APFloat Val(APFloat::IEEEdouble); |
| Val.convertFromString(StringRef("0.00", 3), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.0); |
| Val.convertFromString(StringRef("0.01", 3), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.0); |
| Val.convertFromString(StringRef("0.09", 3), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.0); |
| Val.convertFromString(StringRef("0.095", 4), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.09); |
| Val.convertFromString(StringRef("0.00e+3", 7), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.00); |
| Val.convertFromString(StringRef("0e+3", 4), |
| llvm::APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(Val.convertToDouble(), 0.00); |
| |
| } |
| |
| TEST(APFloatTest, fromZeroDecimalString) { |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "00000.").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+00000.").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-00000.").convertToDouble()); |
| |
| EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, ".00000").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.00000").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.00000").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0000.00000").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0000.00000").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0000.00000").convertToDouble()); |
| } |
| |
| TEST(APFloatTest, fromZeroDecimalSingleExponentString) { |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e-1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "000.0000e1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+000.0000e+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-000.0000e+1").convertToDouble()); |
| } |
| |
| TEST(APFloatTest, fromZeroDecimalLargeExponentString) { |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e1234").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e1234").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e1234").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e+1234").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e+1234").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e+1234").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e-1234").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e-1234").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e-1234").convertToDouble()); |
| |
| EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e1234").convertToDouble()); |
| EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e-1234").convertToDouble()); |
| |
| EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, StringRef("0e1234\02", 6)).convertToDouble()); |
| } |
| |
| TEST(APFloatTest, fromZeroHexadecimalString) { |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p+1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p+1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p-1").convertToDouble()); |
| EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p-1").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p1234").convertToDouble()); |
| EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1234").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1234").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1234").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1234").convertToDouble()); |
| EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1234").convertToDouble()); |
| } |
| |
| TEST(APFloatTest, fromDecimalString) { |
| EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "1").convertToDouble()); |
| EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble, "2.").convertToDouble()); |
| EXPECT_EQ(0.5, APFloat(APFloat::IEEEdouble, ".5").convertToDouble()); |
| EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "1.0").convertToDouble()); |
| EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-2").convertToDouble()); |
| EXPECT_EQ(-4.0, APFloat(APFloat::IEEEdouble, "-4.").convertToDouble()); |
| EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble, "-.5").convertToDouble()); |
| EXPECT_EQ(-1.5, APFloat(APFloat::IEEEdouble, "-1.5").convertToDouble()); |
| EXPECT_EQ(1.25e12, APFloat(APFloat::IEEEdouble, "1.25e12").convertToDouble()); |
| EXPECT_EQ(1.25e+12, APFloat(APFloat::IEEEdouble, "1.25e+12").convertToDouble()); |
| EXPECT_EQ(1.25e-12, APFloat(APFloat::IEEEdouble, "1.25e-12").convertToDouble()); |
| EXPECT_EQ(1024.0, APFloat(APFloat::IEEEdouble, "1024.").convertToDouble()); |
| EXPECT_EQ(1024.05, APFloat(APFloat::IEEEdouble, "1024.05000").convertToDouble()); |
| EXPECT_EQ(0.05, APFloat(APFloat::IEEEdouble, ".05000").convertToDouble()); |
| EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble, "2.").convertToDouble()); |
| EXPECT_EQ(2.0e2, APFloat(APFloat::IEEEdouble, "2.e2").convertToDouble()); |
| EXPECT_EQ(2.0e+2, APFloat(APFloat::IEEEdouble, "2.e+2").convertToDouble()); |
| EXPECT_EQ(2.0e-2, APFloat(APFloat::IEEEdouble, "2.e-2").convertToDouble()); |
| EXPECT_EQ(2.05e2, APFloat(APFloat::IEEEdouble, "002.05000e2").convertToDouble()); |
| EXPECT_EQ(2.05e+2, APFloat(APFloat::IEEEdouble, "002.05000e+2").convertToDouble()); |
| EXPECT_EQ(2.05e-2, APFloat(APFloat::IEEEdouble, "002.05000e-2").convertToDouble()); |
| EXPECT_EQ(2.05e12, APFloat(APFloat::IEEEdouble, "002.05000e12").convertToDouble()); |
| EXPECT_EQ(2.05e+12, APFloat(APFloat::IEEEdouble, "002.05000e+12").convertToDouble()); |
| EXPECT_EQ(2.05e-12, APFloat(APFloat::IEEEdouble, "002.05000e-12").convertToDouble()); |
| |
| // These are "carefully selected" to overflow the fast log-base |
| // calculations in APFloat.cpp |
| EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "99e99999").isInfinity()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-99e99999").isInfinity()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "1e-99999").isPosZero()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-1e-99999").isNegZero()); |
| |
| EXPECT_EQ(2.71828, convertToDoubleFromString("2.71828")); |
| } |
| |
| TEST(APFloatTest, fromHexadecimalString) { |
| EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p0").convertToDouble()); |
| EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p0").convertToDouble()); |
| EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p0").convertToDouble()); |
| |
| EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p+0").convertToDouble()); |
| EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p+0").convertToDouble()); |
| EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p+0").convertToDouble()); |
| |
| EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p-0").convertToDouble()); |
| EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p-0").convertToDouble()); |
| EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p-0").convertToDouble()); |
| |
| |
| EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble, "0x1p1").convertToDouble()); |
| EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble, "+0x1p1").convertToDouble()); |
| EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-0x1p1").convertToDouble()); |
| |
| EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble, "0x1p+1").convertToDouble()); |
| EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble, "+0x1p+1").convertToDouble()); |
| EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-0x1p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.5, APFloat(APFloat::IEEEdouble, "0x1p-1").convertToDouble()); |
| EXPECT_EQ(+0.5, APFloat(APFloat::IEEEdouble, "+0x1p-1").convertToDouble()); |
| EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble, "-0x1p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble, "0x1.8p1").convertToDouble()); |
| EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble, "+0x1.8p1").convertToDouble()); |
| EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble, "-0x1.8p1").convertToDouble()); |
| |
| EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble, "0x1.8p+1").convertToDouble()); |
| EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble, "+0x1.8p+1").convertToDouble()); |
| EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble, "-0x1.8p+1").convertToDouble()); |
| |
| EXPECT_EQ( 0.75, APFloat(APFloat::IEEEdouble, "0x1.8p-1").convertToDouble()); |
| EXPECT_EQ(+0.75, APFloat(APFloat::IEEEdouble, "+0x1.8p-1").convertToDouble()); |
| EXPECT_EQ(-0.75, APFloat(APFloat::IEEEdouble, "-0x1.8p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000.000p1").convertToDouble()); |
| EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p1").convertToDouble()); |
| EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p1").convertToDouble()); |
| |
| EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000.000p+1").convertToDouble()); |
| EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p+1").convertToDouble()); |
| EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p+1").convertToDouble()); |
| |
| EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble, "0x1000.000p-1").convertToDouble()); |
| EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p-1").convertToDouble()); |
| EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000p1").convertToDouble()); |
| EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000p1").convertToDouble()); |
| EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000p1").convertToDouble()); |
| |
| EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000p+1").convertToDouble()); |
| EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000p+1").convertToDouble()); |
| EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000p+1").convertToDouble()); |
| |
| EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble, "0x1000p-1").convertToDouble()); |
| EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble, "+0x1000p-1").convertToDouble()); |
| EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble, "-0x1000p-1").convertToDouble()); |
| |
| |
| EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble, "0x10p10").convertToDouble()); |
| EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble, "+0x10p10").convertToDouble()); |
| EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble, "-0x10p10").convertToDouble()); |
| |
| EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble, "0x10p+10").convertToDouble()); |
| EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble, "+0x10p+10").convertToDouble()); |
| EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble, "-0x10p+10").convertToDouble()); |
| |
| EXPECT_EQ( 0.015625, APFloat(APFloat::IEEEdouble, "0x10p-10").convertToDouble()); |
| EXPECT_EQ(+0.015625, APFloat(APFloat::IEEEdouble, "+0x10p-10").convertToDouble()); |
| EXPECT_EQ(-0.015625, APFloat(APFloat::IEEEdouble, "-0x10p-10").convertToDouble()); |
| |
| EXPECT_EQ(1.0625, APFloat(APFloat::IEEEdouble, "0x1.1p0").convertToDouble()); |
| EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "0x1p0").convertToDouble()); |
| |
| EXPECT_EQ(convertToDoubleFromString("0x1p-150"), |
| convertToDoubleFromString("+0x800000000000000001.p-221")); |
| EXPECT_EQ(2251799813685248.5, |
| convertToDoubleFromString("0x80000000000004000000.010p-28")); |
| } |
| |
| TEST(APFloatTest, toString) { |
| ASSERT_EQ("10", convertToString(10.0, 6, 3)); |
| ASSERT_EQ("1.0E+1", convertToString(10.0, 6, 0)); |
| ASSERT_EQ("10100", convertToString(1.01E+4, 5, 2)); |
| ASSERT_EQ("1.01E+4", convertToString(1.01E+4, 4, 2)); |
| ASSERT_EQ("1.01E+4", convertToString(1.01E+4, 5, 1)); |
| ASSERT_EQ("0.0101", convertToString(1.01E-2, 5, 2)); |
| ASSERT_EQ("0.0101", convertToString(1.01E-2, 4, 2)); |
| ASSERT_EQ("1.01E-2", convertToString(1.01E-2, 5, 1)); |
| ASSERT_EQ("0.78539816339744828", convertToString(0.78539816339744830961, 0, 3)); |
| ASSERT_EQ("4.9406564584124654E-324", convertToString(4.9406564584124654e-324, 0, 3)); |
| ASSERT_EQ("873.18340000000001", convertToString(873.1834, 0, 1)); |
| ASSERT_EQ("8.7318340000000001E+2", convertToString(873.1834, 0, 0)); |
| ASSERT_EQ("1.7976931348623157E+308", convertToString(1.7976931348623157E+308, 0, 0)); |
| } |
| |
| TEST(APFloatTest, toInteger) { |
| bool isExact = false; |
| APSInt result(5, /*isUnsigned=*/true); |
| |
| EXPECT_EQ(APFloat::opOK, |
| APFloat(APFloat::IEEEdouble, "10") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_TRUE(isExact); |
| EXPECT_EQ(APSInt(APInt(5, 10), true), result); |
| |
| EXPECT_EQ(APFloat::opInvalidOp, |
| APFloat(APFloat::IEEEdouble, "-10") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_FALSE(isExact); |
| EXPECT_EQ(APSInt::getMinValue(5, true), result); |
| |
| EXPECT_EQ(APFloat::opInvalidOp, |
| APFloat(APFloat::IEEEdouble, "32") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_FALSE(isExact); |
| EXPECT_EQ(APSInt::getMaxValue(5, true), result); |
| |
| EXPECT_EQ(APFloat::opInexact, |
| APFloat(APFloat::IEEEdouble, "7.9") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_FALSE(isExact); |
| EXPECT_EQ(APSInt(APInt(5, 7), true), result); |
| |
| result.setIsUnsigned(false); |
| EXPECT_EQ(APFloat::opOK, |
| APFloat(APFloat::IEEEdouble, "-10") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_TRUE(isExact); |
| EXPECT_EQ(APSInt(APInt(5, -10, true), false), result); |
| |
| EXPECT_EQ(APFloat::opInvalidOp, |
| APFloat(APFloat::IEEEdouble, "-17") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_FALSE(isExact); |
| EXPECT_EQ(APSInt::getMinValue(5, false), result); |
| |
| EXPECT_EQ(APFloat::opInvalidOp, |
| APFloat(APFloat::IEEEdouble, "16") |
| .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| EXPECT_FALSE(isExact); |
| EXPECT_EQ(APSInt::getMaxValue(5, false), result); |
| } |
| |
| static APInt nanbits(const fltSemantics &Sem, |
| bool SNaN, bool Negative, uint64_t fill) { |
| APInt apfill(64, fill); |
| if (SNaN) |
| return APFloat::getSNaN(Sem, Negative, &apfill).bitcastToAPInt(); |
| else |
| return APFloat::getQNaN(Sem, Negative, &apfill).bitcastToAPInt(); |
| } |
| |
| TEST(APFloatTest, makeNaN) { |
| ASSERT_EQ(0x7fc00000, nanbits(APFloat::IEEEsingle, false, false, 0)); |
| ASSERT_EQ(0xffc00000, nanbits(APFloat::IEEEsingle, false, true, 0)); |
| ASSERT_EQ(0x7fc0ae72, nanbits(APFloat::IEEEsingle, false, false, 0xae72)); |
| ASSERT_EQ(0x7fffae72, nanbits(APFloat::IEEEsingle, false, false, 0xffffae72)); |
| ASSERT_EQ(0x7fa00000, nanbits(APFloat::IEEEsingle, true, false, 0)); |
| ASSERT_EQ(0xffa00000, nanbits(APFloat::IEEEsingle, true, true, 0)); |
| ASSERT_EQ(0x7f80ae72, nanbits(APFloat::IEEEsingle, true, false, 0xae72)); |
| ASSERT_EQ(0x7fbfae72, nanbits(APFloat::IEEEsingle, true, false, 0xffffae72)); |
| |
| ASSERT_EQ(0x7ff8000000000000ULL, nanbits(APFloat::IEEEdouble, false, false, 0)); |
| ASSERT_EQ(0xfff8000000000000ULL, nanbits(APFloat::IEEEdouble, false, true, 0)); |
| ASSERT_EQ(0x7ff800000000ae72ULL, nanbits(APFloat::IEEEdouble, false, false, 0xae72)); |
| ASSERT_EQ(0x7fffffffffffae72ULL, nanbits(APFloat::IEEEdouble, false, false, 0xffffffffffffae72ULL)); |
| ASSERT_EQ(0x7ff4000000000000ULL, nanbits(APFloat::IEEEdouble, true, false, 0)); |
| ASSERT_EQ(0xfff4000000000000ULL, nanbits(APFloat::IEEEdouble, true, true, 0)); |
| ASSERT_EQ(0x7ff000000000ae72ULL, nanbits(APFloat::IEEEdouble, true, false, 0xae72)); |
| ASSERT_EQ(0x7ff7ffffffffae72ULL, nanbits(APFloat::IEEEdouble, true, false, 0xffffffffffffae72ULL)); |
| } |
| |
| #ifdef GTEST_HAS_DEATH_TEST |
| #ifndef NDEBUG |
| TEST(APFloatTest, SemanticsDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEsingle, 0.0f).convertToDouble(), "Float semantics are not IEEEdouble"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, 0.0 ).convertToFloat(), "Float semantics are not IEEEsingle"); |
| } |
| |
| TEST(APFloatTest, StringDecimalDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ""), "Invalid string length"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+"), "String has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-"), "String has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("\0", 1)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\0", 2)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02", 3)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02e1", 5)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e\0", 3)), "Invalid character in exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\0", 4)), "Invalid character in exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\02", 5)), "Invalid character in exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0f"), "Invalid character in significand"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".."), "String contains multiple dots"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "..0"), "String contains multiple dots"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0.0"), "String contains multiple dots"); |
| } |
| |
| TEST(APFloatTest, StringDecimalSignificandDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "."), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+."), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-."), "Significand has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "e"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+e"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-e"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "e1"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+e1"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-e1"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".e1"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.e1"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.e1"), "Significand has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".e"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.e"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.e"), "Significand has no digits"); |
| } |
| |
| TEST(APFloatTest, StringDecimalExponentDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1e"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1.e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1.e"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.1e"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1.1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1.1e"), "Exponent has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e-"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e-"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e-"), "Exponent has no digits"); |
| } |
| |
| TEST(APFloatTest, StringHexadecimalDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x"), "Invalid string"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x"), "Invalid string"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x"), "Invalid string"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0"), "Hex strings require an exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0."), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0."), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0."), "Hex strings require an exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.0"), "Hex strings require an exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0.0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0.0"), "Hex strings require an exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0.0"), "Hex strings require an exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x\0", 3)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\0", 4)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02", 5)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02p1", 7)), "Invalid character in significand"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p\0", 5)), "Invalid character in exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\0", 6)), "Invalid character in exponent"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\02", 7)), "Invalid character in exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p0f"), "Invalid character in exponent"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x..p1"), "String contains multiple dots"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x..0p1"), "String contains multiple dots"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.0.0p1"), "String contains multiple dots"); |
| } |
| |
| TEST(APFloatTest, StringHexadecimalSignificandDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x."), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x."), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x."), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp+"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp+"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp+"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp-"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp-"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp-"), "Significand has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p+"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p+"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p+"), "Significand has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p-"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p-"), "Significand has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p-"), "Significand has no digits"); |
| } |
| |
| TEST(APFloatTest, StringHexadecimalExponentDeath) { |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p+"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p-"), "Exponent has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p+"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p-"), "Exponent has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p+"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p-"), "Exponent has no digits"); |
| |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p+"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p+"), "Exponent has no digits"); |
| |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p-"), "Exponent has no digits"); |
| EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p-"), "Exponent has no digits"); |
| } |
| #endif |
| #endif |
| |
| TEST(APFloatTest, exactInverse) { |
| APFloat inv(0.0f); |
| |
| // Trivial operation. |
| EXPECT_TRUE(APFloat(2.0).getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5))); |
| EXPECT_TRUE(APFloat(2.0f).getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5f))); |
| EXPECT_TRUE(APFloat(APFloat::IEEEquad, "2.0").getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::IEEEquad, "0.5"))); |
| EXPECT_TRUE(APFloat(APFloat::PPCDoubleDouble, "2.0").getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::PPCDoubleDouble, "0.5"))); |
| EXPECT_TRUE(APFloat(APFloat::x87DoubleExtended, "2.0").getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::x87DoubleExtended, "0.5"))); |
| |
| // FLT_MIN |
| EXPECT_TRUE(APFloat(1.17549435e-38f).getExactInverse(&inv)); |
| EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(8.5070592e+37f))); |
| |
| // Large float, inverse is a denormal. |
| EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(nullptr)); |
| // Zero |
| EXPECT_FALSE(APFloat(0.0).getExactInverse(nullptr)); |
| // Denormalized float |
| EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(nullptr)); |
| } |
| |
| TEST(APFloatTest, roundToIntegral) { |
| APFloat T(-0.5), S(3.14), R(APFloat::getLargest(APFloat::IEEEdouble)), P(0.0); |
| |
| P = T; |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_EQ(-0.0, P.convertToDouble()); |
| P = T; |
| P.roundToIntegral(APFloat::rmTowardNegative); |
| EXPECT_EQ(-1.0, P.convertToDouble()); |
| P = T; |
| P.roundToIntegral(APFloat::rmTowardPositive); |
| EXPECT_EQ(-0.0, P.convertToDouble()); |
| P = T; |
| P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(-0.0, P.convertToDouble()); |
| |
| P = S; |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_EQ(3.0, P.convertToDouble()); |
| P = S; |
| P.roundToIntegral(APFloat::rmTowardNegative); |
| EXPECT_EQ(3.0, P.convertToDouble()); |
| P = S; |
| P.roundToIntegral(APFloat::rmTowardPositive); |
| EXPECT_EQ(4.0, P.convertToDouble()); |
| P = S; |
| P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(3.0, P.convertToDouble()); |
| |
| P = R; |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| P = R; |
| P.roundToIntegral(APFloat::rmTowardNegative); |
| EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| P = R; |
| P.roundToIntegral(APFloat::rmTowardPositive); |
| EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| P = R; |
| P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| |
| P = APFloat::getZero(APFloat::IEEEdouble); |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_EQ(0.0, P.convertToDouble()); |
| P = APFloat::getZero(APFloat::IEEEdouble, true); |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_EQ(-0.0, P.convertToDouble()); |
| P = APFloat::getNaN(APFloat::IEEEdouble); |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_TRUE(std::isnan(P.convertToDouble())); |
| P = APFloat::getInf(APFloat::IEEEdouble); |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() > 0.0); |
| P = APFloat::getInf(APFloat::IEEEdouble, true); |
| P.roundToIntegral(APFloat::rmTowardZero); |
| EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() < 0.0); |
| } |
| |
| TEST(APFloatTest, isInteger) { |
| APFloat T(-0.0); |
| EXPECT_TRUE(T.isInteger()); |
| T = APFloat(3.14159); |
| EXPECT_FALSE(T.isInteger()); |
| T = APFloat::getNaN(APFloat::IEEEdouble); |
| EXPECT_FALSE(T.isInteger()); |
| T = APFloat::getInf(APFloat::IEEEdouble); |
| EXPECT_FALSE(T.isInteger()); |
| T = APFloat::getInf(APFloat::IEEEdouble, true); |
| EXPECT_FALSE(T.isInteger()); |
| T = APFloat::getLargest(APFloat::IEEEdouble); |
| EXPECT_TRUE(T.isInteger()); |
| } |
| |
| TEST(APFloatTest, getLargest) { |
| EXPECT_EQ(3.402823466e+38f, APFloat::getLargest(APFloat::IEEEsingle).convertToFloat()); |
| EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble).convertToDouble()); |
| } |
| |
| TEST(APFloatTest, getSmallest) { |
| APFloat test = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat expected = APFloat(APFloat::IEEEsingle, "0x0.000002p-126"); |
| EXPECT_FALSE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| expected = APFloat(APFloat::IEEEsingle, "-0x0.000002p-126"); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallest(APFloat::IEEEquad, false); |
| expected = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382"); |
| EXPECT_FALSE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallest(APFloat::IEEEquad, true); |
| expected = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382"); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_TRUE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| } |
| |
| TEST(APFloatTest, getSmallestNormalized) { |
| APFloat test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat expected = APFloat(APFloat::IEEEsingle, "0x1p-126"); |
| EXPECT_FALSE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| expected = APFloat(APFloat::IEEEsingle, "-0x1p-126"); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallestNormalized(APFloat::IEEEquad, false); |
| expected = APFloat(APFloat::IEEEquad, "0x1p-16382"); |
| EXPECT_FALSE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| |
| test = APFloat::getSmallestNormalized(APFloat::IEEEquad, true); |
| expected = APFloat(APFloat::IEEEquad, "-0x1p-16382"); |
| EXPECT_TRUE(test.isNegative()); |
| EXPECT_TRUE(test.isFiniteNonZero()); |
| EXPECT_FALSE(test.isDenormal()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| } |
| |
| TEST(APFloatTest, getZero) { |
| struct { |
| const fltSemantics *semantics; |
| const bool sign; |
| const unsigned long long bitPattern[2]; |
| const unsigned bitPatternLength; |
| } const GetZeroTest[] = { |
| { &APFloat::IEEEhalf, false, {0, 0}, 1}, |
| { &APFloat::IEEEhalf, true, {0x8000ULL, 0}, 1}, |
| { &APFloat::IEEEsingle, false, {0, 0}, 1}, |
| { &APFloat::IEEEsingle, true, {0x80000000ULL, 0}, 1}, |
| { &APFloat::IEEEdouble, false, {0, 0}, 1}, |
| { &APFloat::IEEEdouble, true, {0x8000000000000000ULL, 0}, 1}, |
| { &APFloat::IEEEquad, false, {0, 0}, 2}, |
| { &APFloat::IEEEquad, true, {0, 0x8000000000000000ULL}, 2}, |
| { &APFloat::PPCDoubleDouble, false, {0, 0}, 2}, |
| { &APFloat::PPCDoubleDouble, true, {0x8000000000000000ULL, 0}, 2}, |
| { &APFloat::x87DoubleExtended, false, {0, 0}, 2}, |
| { &APFloat::x87DoubleExtended, true, {0, 0x8000ULL}, 2}, |
| }; |
| const unsigned NumGetZeroTests = 12; |
| for (unsigned i = 0; i < NumGetZeroTests; ++i) { |
| APFloat test = APFloat::getZero(*GetZeroTest[i].semantics, |
| GetZeroTest[i].sign); |
| const char *pattern = GetZeroTest[i].sign? "-0x0p+0" : "0x0p+0"; |
| APFloat expected = APFloat(*GetZeroTest[i].semantics, |
| pattern); |
| EXPECT_TRUE(test.isZero()); |
| EXPECT_TRUE(GetZeroTest[i].sign? test.isNegative() : !test.isNegative()); |
| EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| for (unsigned j = 0, je = GetZeroTest[i].bitPatternLength; j < je; ++j) { |
| EXPECT_EQ(GetZeroTest[i].bitPattern[j], |
| test.bitcastToAPInt().getRawData()[j]); |
| } |
| } |
| } |
| |
| TEST(APFloatTest, copySign) { |
| EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual( |
| APFloat::copySign(APFloat(42.0), APFloat(-1.0)))); |
| EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual( |
| APFloat::copySign(APFloat(-42.0), APFloat(1.0)))); |
| EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual( |
| APFloat::copySign(APFloat(-42.0), APFloat(-1.0)))); |
| EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual( |
| APFloat::copySign(APFloat(42.0), APFloat(1.0)))); |
| } |
| |
| TEST(APFloatTest, convert) { |
| bool losesInfo; |
| APFloat test(APFloat::IEEEdouble, "1.0"); |
| test.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo); |
| EXPECT_EQ(1.0f, test.convertToFloat()); |
| EXPECT_FALSE(losesInfo); |
| |
| test = APFloat(APFloat::x87DoubleExtended, "0x1p-53"); |
| test.add(APFloat(APFloat::x87DoubleExtended, "1.0"), APFloat::rmNearestTiesToEven); |
| test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); |
| EXPECT_EQ(1.0, test.convertToDouble()); |
| EXPECT_TRUE(losesInfo); |
| |
| test = APFloat(APFloat::IEEEquad, "0x1p-53"); |
| test.add(APFloat(APFloat::IEEEquad, "1.0"), APFloat::rmNearestTiesToEven); |
| test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); |
| EXPECT_EQ(1.0, test.convertToDouble()); |
| EXPECT_TRUE(losesInfo); |
| |
| test = APFloat(APFloat::x87DoubleExtended, "0xf.fffffffp+28"); |
| test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); |
| EXPECT_EQ(4294967295.0, test.convertToDouble()); |
| EXPECT_FALSE(losesInfo); |
| |
| test = APFloat::getSNaN(APFloat::IEEEsingle); |
| APFloat X87SNaN = APFloat::getSNaN(APFloat::x87DoubleExtended); |
| test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven, |
| &losesInfo); |
| EXPECT_TRUE(test.bitwiseIsEqual(X87SNaN)); |
| EXPECT_FALSE(losesInfo); |
| |
| test = APFloat::getQNaN(APFloat::IEEEsingle); |
| APFloat X87QNaN = APFloat::getQNaN(APFloat::x87DoubleExtended); |
| test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven, |
| &losesInfo); |
| EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN)); |
| EXPECT_FALSE(losesInfo); |
| |
| test = APFloat::getSNaN(APFloat::x87DoubleExtended); |
| test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven, |
| &losesInfo); |
| EXPECT_TRUE(test.bitwiseIsEqual(X87SNaN)); |
| EXPECT_FALSE(losesInfo); |
| |
| test = APFloat::getQNaN(APFloat::x87DoubleExtended); |
| test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven, |
| &losesInfo); |
| EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN)); |
| EXPECT_FALSE(losesInfo); |
| } |
| |
| TEST(APFloatTest, PPCDoubleDouble) { |
| APFloat test(APFloat::PPCDoubleDouble, "1.0"); |
| EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| |
| test.divide(APFloat(APFloat::PPCDoubleDouble, "3.0"), APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(0x3fd5555555555555ull, test.bitcastToAPInt().getRawData()[0]); |
| EXPECT_EQ(0x3c75555555555556ull, test.bitcastToAPInt().getRawData()[1]); |
| |
| // LDBL_MAX |
| test = APFloat(APFloat::PPCDoubleDouble, "1.79769313486231580793728971405301e+308"); |
| EXPECT_EQ(0x7fefffffffffffffull, test.bitcastToAPInt().getRawData()[0]); |
| EXPECT_EQ(0x7c8ffffffffffffeull, test.bitcastToAPInt().getRawData()[1]); |
| |
| // LDBL_MIN |
| test = APFloat(APFloat::PPCDoubleDouble, "2.00416836000897277799610805135016e-292"); |
| EXPECT_EQ(0x0360000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| |
| test = APFloat(APFloat::PPCDoubleDouble, "1.0"); |
| test.add(APFloat(APFloat::PPCDoubleDouble, "0x1p-105"), APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| EXPECT_EQ(0x3960000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| |
| test = APFloat(APFloat::PPCDoubleDouble, "1.0"); |
| test.add(APFloat(APFloat::PPCDoubleDouble, "0x1p-106"), APFloat::rmNearestTiesToEven); |
| EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| #if 0 // XFAIL |
| // This is what we would expect with a true double-double implementation |
| EXPECT_EQ(0x3950000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| #else |
| // This is what we get with our 106-bit mantissa approximation |
| EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| #endif |
| } |
| |
| TEST(APFloatTest, isNegative) { |
| APFloat t(APFloat::IEEEsingle, "0x1p+0"); |
| EXPECT_FALSE(t.isNegative()); |
| t = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| EXPECT_TRUE(t.isNegative()); |
| |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNegative()); |
| EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, true).isNegative()); |
| |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNegative()); |
| EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, true).isNegative()); |
| |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isNegative()); |
| EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle, true).isNegative()); |
| |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNegative()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true).isNegative()); |
| } |
| |
| TEST(APFloatTest, isNormal) { |
| APFloat t(APFloat::IEEEsingle, "0x1p+0"); |
| EXPECT_TRUE(t.isNormal()); |
| |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNormal()); |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNormal()); |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isNormal()); |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNormal()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNormal()); |
| } |
| |
| TEST(APFloatTest, isFinite) { |
| APFloat t(APFloat::IEEEsingle, "0x1p+0"); |
| EXPECT_TRUE(t.isFinite()); |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFinite()); |
| EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, false).isFinite()); |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFinite()); |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFinite()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFinite()); |
| } |
| |
| TEST(APFloatTest, isInfinity) { |
| APFloat t(APFloat::IEEEsingle, "0x1p+0"); |
| EXPECT_FALSE(t.isInfinity()); |
| EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, false).isInfinity()); |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isInfinity()); |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isInfinity()); |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isInfinity()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isInfinity()); |
| } |
| |
| TEST(APFloatTest, isNaN) { |
| APFloat t(APFloat::IEEEsingle, "0x1p+0"); |
| EXPECT_FALSE(t.isNaN()); |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNaN()); |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNaN()); |
| EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle, false).isNaN()); |
| EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNaN()); |
| EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNaN()); |
| } |
| |
| TEST(APFloatTest, isFiniteNonZero) { |
| // Test positive/negative normal value. |
| EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p+0").isFiniteNonZero()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p+0").isFiniteNonZero()); |
| |
| // Test positive/negative denormal value. |
| EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFiniteNonZero()); |
| EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p-149").isFiniteNonZero()); |
| |
| // Test +/- Infinity. |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFiniteNonZero()); |
| EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, true).isFiniteNonZero()); |
| |
| // Test +/- Zero. |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isFiniteNonZero()); |
| EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, true).isFiniteNonZero()); |
| |
| // Test +/- qNaN. +/- dont mean anything with qNaN but paranoia can't hurt in |
| // this instance. |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFiniteNonZero()); |
| EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, true).isFiniteNonZero()); |
| |
| // Test +/- sNaN. +/- dont mean anything with sNaN but paranoia can't hurt in |
| // this instance. |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFiniteNonZero()); |
| EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, true).isFiniteNonZero()); |
| } |
| |
| TEST(APFloatTest, add) { |
| // Test Special Cases against each other and normal values. |
| |
| // TODOS/NOTES: |
| // 1. Since we perform only default exception handling all operations with |
| // signaling NaNs should have a result that is a quiet NaN. Currently they |
| // return sNaN. |
| |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); |
| APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); |
| APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| APFloat PSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat MSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| |
| const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| |
| const unsigned NumTests = 169; |
| struct { |
| APFloat x; |
| APFloat y; |
| const char *result; |
| int status; |
| int category; |
| } SpecialCaseTests[NumTests] = { |
| { PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, MNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, PSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, MSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, MSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal } |
| }; |
| |
| for (size_t i = 0; i < NumTests; ++i) { |
| APFloat x(SpecialCaseTests[i].x); |
| APFloat y(SpecialCaseTests[i].y); |
| APFloat::opStatus status = x.add(y, APFloat::rmNearestTiesToEven); |
| |
| APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); |
| |
| EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| EXPECT_TRUE((int)status == SpecialCaseTests[i].status); |
| EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); |
| } |
| } |
| |
| TEST(APFloatTest, subtract) { |
| // Test Special Cases against each other and normal values. |
| |
| // TODOS/NOTES: |
| // 1. Since we perform only default exception handling all operations with |
| // signaling NaNs should have a result that is a quiet NaN. Currently they |
| // return sNaN. |
| |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); |
| APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); |
| APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| APFloat PSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat MSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| |
| const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| |
| const unsigned NumTests = 169; |
| struct { |
| APFloat x; |
| APFloat y; |
| const char *result; |
| int status; |
| int category; |
| } SpecialCaseTests[NumTests] = { |
| { PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, MNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MNormalValue, PNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, MSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestValue, PSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, PSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestNormalized, MSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero } |
| }; |
| |
| for (size_t i = 0; i < NumTests; ++i) { |
| APFloat x(SpecialCaseTests[i].x); |
| APFloat y(SpecialCaseTests[i].y); |
| APFloat::opStatus status = x.subtract(y, APFloat::rmNearestTiesToEven); |
| |
| APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); |
| |
| EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| EXPECT_TRUE((int)status == SpecialCaseTests[i].status); |
| EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); |
| } |
| } |
| |
| TEST(APFloatTest, multiply) { |
| // Test Special Cases against each other and normal values. |
| |
| // TODOS/NOTES: |
| // 1. Since we perform only default exception handling all operations with |
| // signaling NaNs should have a result that is a quiet NaN. Currently they |
| // return sNaN. |
| |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); |
| APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); |
| APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| APFloat PSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat MSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| |
| const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; |
| |
| const unsigned NumTests = 169; |
| struct { |
| APFloat x; |
| APFloat y; |
| const char *result; |
| int status; |
| int category; |
| } SpecialCaseTests[NumTests] = { |
| { PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PNormalValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MNormalValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PLargestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, PSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MLargestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, PSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, PSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestValue, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestValue, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestValue, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PSmallestNormalized, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestNormalized, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MSmallestNormalized, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero } |
| }; |
| |
| for (size_t i = 0; i < NumTests; ++i) { |
| APFloat x(SpecialCaseTests[i].x); |
| APFloat y(SpecialCaseTests[i].y); |
| APFloat::opStatus status = x.multiply(y, APFloat::rmNearestTiesToEven); |
| |
| APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); |
| |
| EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| EXPECT_TRUE((int)status == SpecialCaseTests[i].status); |
| EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); |
| } |
| } |
| |
| TEST(APFloatTest, divide) { |
| // Test Special Cases against each other and normal values. |
| |
| // TODOS/NOTES: |
| // 1. Since we perform only default exception handling all operations with |
| // signaling NaNs should have a result that is a quiet NaN. Currently they |
| // return sNaN. |
| |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); |
| APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); |
| APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| APFloat PSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat MSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| |
| const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; |
| |
| const unsigned NumTests = 169; |
| struct { |
| APFloat x; |
| APFloat y; |
| const char *result; |
| int status; |
| int category; |
| } SpecialCaseTests[NumTests] = { |
| { PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, |
| { MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, |
| { PZero, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PNormalValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PNormalValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, PLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal }, |
| { PNormalValue, MLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal }, |
| { PNormalValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PNormalValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { PNormalValue, PSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal }, |
| { PNormalValue, MSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MNormalValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MNormalValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, PLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal }, |
| { MNormalValue, MLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal }, |
| { MNormalValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MNormalValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { MNormalValue, PSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal }, |
| { MNormalValue, MSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PLargestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PLargestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, MLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PLargestValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, PSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PLargestValue, MSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MLargestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MLargestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, PLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, MLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MLargestValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, PSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity }, |
| { MLargestValue, MSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity }, |
| { PSmallestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PSmallestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestValue, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestValue, PSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, PSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestValue, MSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MSmallestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestValue, PSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, PSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestValue, MSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestNormalized, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { PSmallestNormalized, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PSmallestNormalized, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { PSmallestNormalized, PSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, PSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { PSmallestNormalized, MSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, |
| { MSmallestNormalized, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MSmallestNormalized, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, |
| { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, |
| #if 0 |
| // See Note 1. |
| { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, |
| #endif |
| { MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, |
| { MSmallestNormalized, PSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, PSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| { MSmallestNormalized, MSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, |
| }; |
| |
| for (size_t i = 0; i < NumTests; ++i) { |
| APFloat x(SpecialCaseTests[i].x); |
| APFloat y(SpecialCaseTests[i].y); |
| APFloat::opStatus status = x.divide(y, APFloat::rmNearestTiesToEven); |
| |
| APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); |
| |
| EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| EXPECT_TRUE((int)status == SpecialCaseTests[i].status); |
| EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); |
| } |
| } |
| |
| TEST(APFloatTest, operatorOverloads) { |
| // This is mostly testing that these operator overloads compile. |
| APFloat One = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat Two = APFloat(APFloat::IEEEsingle, "0x2p+0"); |
| EXPECT_TRUE(Two.bitwiseIsEqual(One + One)); |
| EXPECT_TRUE(One.bitwiseIsEqual(Two - One)); |
| EXPECT_TRUE(Two.bitwiseIsEqual(One * Two)); |
| EXPECT_TRUE(One.bitwiseIsEqual(Two / Two)); |
| } |
| |
| TEST(APFloatTest, abs) { |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat PQNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat MQNaN = APFloat::getNaN(APFloat::IEEEsingle, true); |
| APFloat PSNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| APFloat MSNaN = APFloat::getSNaN(APFloat::IEEEsingle, true); |
| APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); |
| APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); |
| APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); |
| APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); |
| APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); |
| APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); |
| APFloat PSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); |
| APFloat MSmallestNormalized = |
| APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); |
| |
| EXPECT_TRUE(PInf.bitwiseIsEqual(abs(PInf))); |
| EXPECT_TRUE(PInf.bitwiseIsEqual(abs(MInf))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual(abs(PZero))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual(abs(MZero))); |
| EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(PQNaN))); |
| EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(MQNaN))); |
| EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(PSNaN))); |
| EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(MSNaN))); |
| EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(PNormalValue))); |
| EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(MNormalValue))); |
| EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(PLargestValue))); |
| EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(MLargestValue))); |
| EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(PSmallestValue))); |
| EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(MSmallestValue))); |
| EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(PSmallestNormalized))); |
| EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(MSmallestNormalized))); |
| } |
| |
| TEST(APFloatTest, ilogb) { |
| EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+0"))); |
| EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "-0x1p+0"))); |
| EXPECT_EQ(42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+42"))); |
| EXPECT_EQ(-42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p-42"))); |
| |
| EXPECT_EQ(APFloat::IEK_Inf, |
| ilogb(APFloat::getInf(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(APFloat::IEK_Inf, |
| ilogb(APFloat::getInf(APFloat::IEEEsingle, true))); |
| EXPECT_EQ(APFloat::IEK_Zero, |
| ilogb(APFloat::getZero(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(APFloat::IEK_Zero, |
| ilogb(APFloat::getZero(APFloat::IEEEsingle, true))); |
| EXPECT_EQ(APFloat::IEK_NaN, |
| ilogb(APFloat::getNaN(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(APFloat::IEK_NaN, |
| ilogb(APFloat::getSNaN(APFloat::IEEEsingle, false))); |
| |
| EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, true))); |
| EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, true))); |
| EXPECT_EQ(-126, |
| ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, false))); |
| EXPECT_EQ(-126, |
| ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, true))); |
| } |
| |
| TEST(APFloatTest, scalbn) { |
| EXPECT_TRUE( |
| APFloat(APFloat::IEEEsingle, "0x1p+0") |
| .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 0))); |
| EXPECT_TRUE( |
| APFloat(APFloat::IEEEsingle, "0x1p+42") |
| .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 42))); |
| EXPECT_TRUE( |
| APFloat(APFloat::IEEEsingle, "0x1p-42") |
| .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -42))); |
| |
| APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); |
| APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); |
| APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); |
| APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); |
| APFloat QPNaN = APFloat::getNaN(APFloat::IEEEsingle, false); |
| APFloat QMNaN = APFloat::getNaN(APFloat::IEEEsingle, true); |
| APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); |
| |
| EXPECT_TRUE(PInf.bitwiseIsEqual(scalbn(PInf, 0))); |
| EXPECT_TRUE(MInf.bitwiseIsEqual(scalbn(MInf, 0))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual(scalbn(PZero, 0))); |
| EXPECT_TRUE(MZero.bitwiseIsEqual(scalbn(MZero, 0))); |
| EXPECT_TRUE(QPNaN.bitwiseIsEqual(scalbn(QPNaN, 0))); |
| EXPECT_TRUE(QMNaN.bitwiseIsEqual(scalbn(QMNaN, 0))); |
| EXPECT_TRUE(SNaN.bitwiseIsEqual(scalbn(SNaN, 0))); |
| |
| EXPECT_TRUE( |
| PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 128))); |
| EXPECT_TRUE(MInf.bitwiseIsEqual( |
| scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), 128))); |
| EXPECT_TRUE( |
| PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+127"), 1))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual( |
| scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -127))); |
| EXPECT_TRUE(MZero.bitwiseIsEqual( |
| scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), -127))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual( |
| scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1))); |
| EXPECT_TRUE(PZero.bitwiseIsEqual( |
| scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1))); |
| } |
| } |
