1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
//===----------------------------------------------------------------------===//
//
// 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>
// plus
#include <functional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
typedef std::plus<int> F;
const F f = F();
static_assert((std::is_same<int, F::first_argument_type>::value), "" );
static_assert((std::is_same<int, F::second_argument_type>::value), "" );
static_assert((std::is_same<int, F::result_type>::value), "" );
assert(f(3, 2) == 5);
#if TEST_STD_VER > 11
typedef std::plus<> F2;
const F2 f2 = F2();
assert(f2(3,2) == 5);
assert(f2(3.0, 2) == 5);
assert(f2(3, 2.5) == 5.5);
constexpr int foo = std::plus<int> () (3, 2);
static_assert ( foo == 5, "" );
constexpr int bar = std::plus<> () (3.0, 2);
static_assert ( bar == 5, "" );
#endif
}
|
