flip_all.pass.cpp
1.36 KB
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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// test bitset<N>& flip();
#include <bitset>
#include <cstdlib>
#include <cassert>
#include "test_macros.h"
#if defined(TEST_COMPILER_CLANG)
#pragma clang diagnostic ignored "-Wtautological-compare"
#elif defined(TEST_COMPILER_C1XX)
#pragma warning(disable: 6294) // Ill-defined for-loop: initial condition does not satisfy test. Loop body not executed.
#endif
template <std::size_t N>
std::bitset<N>
make_bitset()
{
std::bitset<N> v;
for (std::size_t i = 0; i < N; ++i)
v[i] = static_cast<bool>(std::rand() & 1);
return v;
}
template <std::size_t N>
void test_flip_all()
{
std::bitset<N> v1 = make_bitset<N>();
std::bitset<N> v2 = v1;
v2.flip();
for (std::size_t i = 0; i < N; ++i)
assert(v2[i] == ~v1[i]);
}
int main(int, char**)
{
test_flip_all<0>();
test_flip_all<1>();
test_flip_all<31>();
test_flip_all<32>();
test_flip_all<33>();
test_flip_all<63>();
test_flip_all<64>();
test_flip_all<65>();
test_flip_all<1000>();
return 0;
}