| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <functional> |
| |
| // template<CopyConstructible Fn, CopyConstructible... Types> |
| // unspecified bind(Fn, Types...); |
| // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types> |
| // unspecified bind(Fn, Types...); |
| |
| #include <stdio.h> |
| |
| #include <functional> |
| #include <cassert> |
| |
| int count = 0; |
| |
| // 1 arg, return void |
| |
| void f_void_1(int i) |
| { |
| count += i; |
| } |
| |
| struct A_void_1 |
| { |
| void operator()(int i) |
| { |
| count += i; |
| } |
| |
| void mem1() {++count;} |
| void mem2() const {count += 2;} |
| }; |
| |
| void |
| test_void_1() |
| { |
| using namespace std::placeholders; |
| int save_count = count; |
| // function |
| { |
| int i = 2; |
| std::bind(f_void_1, _1)(i); |
| assert(count == save_count + 2); |
| save_count = count; |
| } |
| { |
| int i = 2; |
| std::bind(f_void_1, i)(); |
| assert(count == save_count + 2); |
| save_count = count; |
| } |
| // function pointer |
| { |
| void (*fp)(int) = f_void_1; |
| int i = 3; |
| std::bind(fp, _1)(i); |
| assert(count == save_count+3); |
| save_count = count; |
| } |
| { |
| void (*fp)(int) = f_void_1; |
| int i = 3; |
| std::bind(fp, i)(); |
| assert(count == save_count+3); |
| save_count = count; |
| } |
| // functor |
| { |
| A_void_1 a0; |
| int i = 4; |
| std::bind(a0, _1)(i); |
| assert(count == save_count+4); |
| save_count = count; |
| } |
| { |
| A_void_1 a0; |
| int i = 4; |
| std::bind(a0, i)(); |
| assert(count == save_count+4); |
| save_count = count; |
| } |
| // member function pointer |
| { |
| void (A_void_1::*fp)() = &A_void_1::mem1; |
| A_void_1 a; |
| std::bind(fp, _1)(a); |
| assert(count == save_count+1); |
| save_count = count; |
| A_void_1* ap = &a; |
| std::bind(fp, _1)(ap); |
| assert(count == save_count+1); |
| save_count = count; |
| } |
| { |
| void (A_void_1::*fp)() = &A_void_1::mem1; |
| A_void_1 a; |
| std::bind(fp, a)(); |
| assert(count == save_count+1); |
| save_count = count; |
| A_void_1* ap = &a; |
| std::bind(fp, ap)(); |
| assert(count == save_count+1); |
| save_count = count; |
| } |
| // const member function pointer |
| { |
| void (A_void_1::*fp)() const = &A_void_1::mem2; |
| A_void_1 a; |
| std::bind(fp, _1)(a); |
| assert(count == save_count+2); |
| save_count = count; |
| A_void_1* ap = &a; |
| std::bind(fp, _1)(ap); |
| assert(count == save_count+2); |
| save_count = count; |
| } |
| { |
| void (A_void_1::*fp)() const = &A_void_1::mem2; |
| A_void_1 a; |
| std::bind(fp, a)(); |
| assert(count == save_count+2); |
| save_count = count; |
| A_void_1* ap = &a; |
| std::bind(fp, ap)(); |
| assert(count == save_count+2); |
| save_count = count; |
| } |
| } |
| |
| // 1 arg, return int |
| |
| int f_int_1(int i) |
| { |
| return i + 1; |
| } |
| |
| struct A_int_1 |
| { |
| A_int_1() : data_(5) {} |
| int operator()(int i) |
| { |
| return i - 1; |
| } |
| |
| int mem1() {return 3;} |
| int mem2() const {return 4;} |
| int data_; |
| }; |
| |
| void |
| test_int_1() |
| { |
| using namespace std::placeholders; |
| // function |
| { |
| int i = 2; |
| assert(std::bind(f_int_1, _1)(i) == 3); |
| assert(std::bind(f_int_1, i)() == 3); |
| } |
| // function pointer |
| { |
| int (*fp)(int) = f_int_1; |
| int i = 3; |
| assert(std::bind(fp, _1)(i) == 4); |
| assert(std::bind(fp, i)() == 4); |
| } |
| // functor |
| { |
| int i = 4; |
| assert(std::bind(A_int_1(), _1)(i) == 3); |
| assert(std::bind(A_int_1(), i)() == 3); |
| } |
| // member function pointer |
| { |
| A_int_1 a; |
| assert(std::bind(&A_int_1::mem1, _1)(a) == 3); |
| assert(std::bind(&A_int_1::mem1, a)() == 3); |
| A_int_1* ap = &a; |
| assert(std::bind(&A_int_1::mem1, _1)(ap) == 3); |
| assert(std::bind(&A_int_1::mem1, ap)() == 3); |
| } |
| // const member function pointer |
| { |
| A_int_1 a; |
| assert(std::bind(&A_int_1::mem2, _1)(A_int_1()) == 4); |
| assert(std::bind(&A_int_1::mem2, A_int_1())() == 4); |
| A_int_1* ap = &a; |
| assert(std::bind(&A_int_1::mem2, _1)(ap) == 4); |
| assert(std::bind(&A_int_1::mem2, ap)() == 4); |
| } |
| // member data pointer |
| { |
| A_int_1 a; |
| assert(std::bind(&A_int_1::data_, _1)(a) == 5); |
| assert(std::bind(&A_int_1::data_, a)() == 5); |
| A_int_1* ap = &a; |
| assert(std::bind(&A_int_1::data_, _1)(a) == 5); |
| std::bind(&A_int_1::data_, _1)(a) = 6; |
| assert(std::bind(&A_int_1::data_, _1)(a) == 6); |
| assert(std::bind(&A_int_1::data_, _1)(ap) == 6); |
| std::bind(&A_int_1::data_, _1)(ap) = 7; |
| assert(std::bind(&A_int_1::data_, _1)(ap) == 7); |
| } |
| } |
| |
| // 2 arg, return void |
| |
| void f_void_2(int i, int j) |
| { |
| count += i+j; |
| } |
| |
| struct A_void_2 |
| { |
| void operator()(int i, int j) |
| { |
| count += i+j; |
| } |
| |
| void mem1(int i) {count += i;} |
| void mem2(int i) const {count += i;} |
| }; |
| |
| void |
| test_void_2() |
| { |
| using namespace std::placeholders; |
| int save_count = count; |
| // function |
| { |
| int i = 2; |
| int j = 3; |
| std::bind(f_void_2, _1, _2)(i, j); |
| assert(count == save_count+5); |
| save_count = count; |
| std::bind(f_void_2, i, _1)(j); |
| assert(count == save_count+5); |
| save_count = count; |
| std::bind(f_void_2, i, j)(); |
| assert(count == save_count+5); |
| save_count = count; |
| } |
| // member function pointer |
| { |
| int j = 3; |
| std::bind(&A_void_2::mem1, _1, _2)(A_void_2(), j); |
| assert(count == save_count+3); |
| save_count = count; |
| std::bind(&A_void_2::mem1, _2, _1)(j, A_void_2()); |
| assert(count == save_count+3); |
| save_count = count; |
| } |
| } |
| |
| struct TFENode |
| { |
| bool foo(unsigned long long) const |
| { |
| return true; |
| } |
| }; |
| |
| void |
| test3() |
| { |
| using namespace std; |
| using namespace std::placeholders; |
| const auto f = bind(&TFENode::foo, _1, 0UL); |
| const TFENode n = TFENode{}; |
| bool b = f(n); |
| } |
| |
| int main() |
| { |
| test_void_1(); |
| test_int_1(); |
| test_void_2(); |
| } |