1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <vector>
10
11// void flip();
12
13#include <cassert>
14#include <memory>
15#include <vector>
16
17#include "min_allocator.h"
18#include "test_allocator.h"
19#include "test_macros.h"
20
21template <typename Allocator>
22TEST_CONSTEXPR_CXX20 void test_vector_flip(std::size_t n, Allocator a) {
23 std::vector<bool, Allocator> v(n, false, a);
24 for (std::size_t i = 0; i < n; ++i)
25 v[i] = i & 1;
26 std::vector<bool, Allocator> original = v;
27 v.flip();
28 for (size_t i = 0; i < n; ++i)
29 assert(v[i] == !original[i]);
30 v.flip();
31 assert(v == original);
32}
33
34TEST_CONSTEXPR_CXX20 bool tests() {
35 // Test empty vectors
36 test_vector_flip(0, std::allocator<bool>());
37 test_vector_flip(0, min_allocator<bool>());
38 test_vector_flip(0, test_allocator<bool>(5));
39
40 // Test small vectors with different allocators
41 test_vector_flip(3, std::allocator<bool>());
42 test_vector_flip(3, min_allocator<bool>());
43 test_vector_flip(3, test_allocator<bool>(5));
44
45 // Test large vectors with different allocators
46 test_vector_flip(1000, std::allocator<bool>());
47 test_vector_flip(1000, min_allocator<bool>());
48 test_vector_flip(1000, test_allocator<bool>(5));
49
50 return true;
51}
52
53int main(int, char**) {
54 tests();
55#if TEST_STD_VER >= 20
56 static_assert(tests());
57#endif
58 return 0;
59}
60

source code of libcxx/test/std/containers/sequences/vector.bool/flip.pass.cpp