c52f43e72d
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111767 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
818 B
C++
34 lines
818 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <functional>
|
|
|
|
// 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);
|
|
}
|