ff46409221
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187357 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
797 B
C++
32 lines
797 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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>
|
|
|
|
// negate
|
|
|
|
#include <functional>
|
|
#include <type_traits>
|
|
#include <cassert>
|
|
|
|
int main()
|
|
{
|
|
typedef std::negate<int> F;
|
|
const F f = F();
|
|
static_assert((std::is_base_of<std::unary_function<int, int>, F>::value), "");
|
|
assert(f(36) == -36);
|
|
#if _LIBCPP_STD_VER > 11
|
|
typedef std::negate<> F2;
|
|
const F2 f2 = F2();
|
|
assert(f2(36) == -36);
|
|
assert(f2(36L) == -36);
|
|
assert(f2(36.0) == -36);
|
|
#endif
|
|
}
|