| // { dg-options "-std=gnu++0x" } |
| // { dg-require-string-conversions "" } |
| |
| // 2008-06-15 Paolo Carlini <paolo.carlini@oracle.com> |
| |
| // Copyright (C) 2008-2013 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // 21.4 Numeric Conversions [string.conversions] |
| |
| #include <string> |
| #include <limits> |
| #include <stdexcept> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| bool test __attribute__((unused)) = false; |
| using namespace std; |
| |
| try |
| { |
| string one; |
| stof(one); |
| } |
| catch(std::invalid_argument) |
| { |
| test = true; |
| } |
| catch(...) |
| { |
| } |
| VERIFY( test ); |
| |
| test = false; |
| try |
| { |
| string one("a"); |
| stof(one); |
| } |
| catch(std::invalid_argument) |
| { |
| test = true; |
| } |
| catch(...) |
| { |
| } |
| VERIFY( test ); |
| |
| float f1 = 0.0f; |
| size_t idx1 = 0; |
| try |
| { |
| string one("2.0a"); |
| f1 = stof(one, &idx1); |
| } |
| catch(...) |
| { |
| test = false; |
| } |
| VERIFY( test ); |
| VERIFY( f1 == 2.0f ); |
| VERIFY( idx1 == 3 ); |
| |
| test = false; |
| try |
| { |
| string one("1e"); |
| one.append(2 * numeric_limits<float>::max_exponent10, '9'); |
| f1 = stof(one); |
| } |
| catch(std::out_of_range) |
| { |
| test = true; |
| } |
| catch(...) |
| { |
| } |
| VERIFY( test ); |
| VERIFY( f1 == 2.0f ); |
| |
| try |
| { |
| long double ld0 = numeric_limits<float>::max() / 100.0; |
| string one(to_string(ld0)); |
| stof(one); |
| } |
| catch(...) |
| { |
| test = false; |
| } |
| VERIFY( test ); |
| |
| if ((numeric_limits<long double>::max() / 10000.0L) |
| > numeric_limits<float>::max()) |
| { |
| test = false; |
| f1 = -1.0f; |
| try |
| { |
| long double ld1 = numeric_limits<float>::max(); |
| ld1 *= 100.0; |
| string one(to_string(ld1)); |
| f1 = stof(one); |
| } |
| catch(std::out_of_range) |
| { |
| test = true; |
| } |
| catch(...) |
| { |
| } |
| VERIFY( test ); |
| VERIFY( f1 == -1.0f ); |
| } |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |