1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <functional>
11
12// divides
13
14#include <functional>
15#include <type_traits>
16#include <cassert>
17
18int main()
19{
20    typedef std::divides<int> F;
21    const F f = F();
22    static_assert((std::is_same<int, F::first_argument_type>::value), "" );
23    static_assert((std::is_same<int, F::second_argument_type>::value), "" );
24    static_assert((std::is_same<int, F::result_type>::value), "" );
25    assert(f(36, 4) == 9);
26#if _LIBCPP_STD_VER > 11
27    typedef std::divides<> F2;
28    const F2 f2 = F2();
29    assert(f2(36, 4) == 9);
30    assert(f2(36.0, 4) == 9);
31    assert(f2(18, 4.0) == 4.5); // exact in binary
32
33    constexpr int foo = std::divides<int> () (3, 2);
34    static_assert ( foo == 1, "" );
35
36    constexpr int bar = std::divides<> () (3.0, 2);
37    static_assert ( bar == 1, "" );
38#endif
39}
40