4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
37 lines
1,021 B
C++
37 lines
1,021 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>
|
|
|
|
// multiplies
|
|
|
|
#include <functional>
|
|
#include <type_traits>
|
|
#include <cassert>
|
|
|
|
int main()
|
|
{
|
|
typedef std::multiplies<int> F;
|
|
const F f = F();
|
|
static_assert((std::is_base_of<std::binary_function<int, int, int>, F>::value), "");
|
|
assert(f(3, 2) == 6);
|
|
#if _LIBCPP_STD_VER > 11
|
|
typedef std::multiplies<> F2;
|
|
const F2 f2 = F2();
|
|
assert(f2(3,2) == 6);
|
|
assert(f2(3.0, 2) == 6);
|
|
assert(f2(3, 2.5) == 7.5); // exact in binary
|
|
|
|
constexpr int foo = std::multiplies<int> () (3, 2);
|
|
static_assert ( foo == 6, "" );
|
|
|
|
constexpr int bar = std::multiplies<> () (3.0, 2);
|
|
static_assert ( bar == 6, "" );
|
|
#endif
|
|
}
|