| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| // REQUIRES: c++98 || c++03 || c++11 || c++14 |
| |
| // const_mem_fun_t |
| |
| #include <functional> |
| #include <type_traits> |
| #include <cassert> |
| |
| struct A |
| { |
| char a1() {return 5;} |
| short a2(int i) {return short(i+1);} |
| int a3() const {return 1;} |
| double a4(unsigned i) const {return i-1;} |
| }; |
| |
| int main() |
| { |
| typedef std::const_mem_fun_t<int, A> F; |
| static_assert((std::is_base_of<std::unary_function<const A*, int>, F>::value), ""); |
| const F f(&A::a3); |
| const A a = A(); |
| assert(f(&a) == 1); |
| } |
