xref: /llvm-project/libcxx/test/std/utilities/template.bitset/bitset.operators/op_not.pass.cpp (revision f02120fba28f2352fd9396683892fc6671caa137)
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 // bitset<N> operator^(const bitset<N>& lhs, const bitset<N>& rhs); // constexpr since C++23
10 
11 #include <bitset>
12 #include <cassert>
13 #include <cstddef>
14 #include <vector>
15 
16 #include "../bitset_test_cases.h"
17 #include "test_macros.h"
18 
19 template <std::size_t N>
test_op_not()20 TEST_CONSTEXPR_CXX23 void test_op_not() {
21     std::vector<std::bitset<N> > const cases = get_test_cases<N>();
22     for (std::size_t c1 = 0; c1 != cases.size(); ++c1) {
23         for (std::size_t c2 = 0; c2 != cases.size(); ++c2) {
24             std::bitset<N> v1 = cases[c1];
25             std::bitset<N> v2 = cases[c2];
26             std::bitset<N> v3 = v1;
27             assert((v1 ^ v2) == (v3 ^= v2));
28         }
29     }
30 }
31 
test()32 TEST_CONSTEXPR_CXX23 bool test() {
33   test_op_not<0>();
34   test_op_not<1>();
35   test_op_not<31>();
36   test_op_not<32>();
37   test_op_not<33>();
38   test_op_not<63>();
39   test_op_not<64>();
40   test_op_not<65>();
41 
42   return true;
43 }
44 
main(int,char **)45 int main(int, char**) {
46   test();
47   test_op_not<1000>(); // not in constexpr because of constexpr evaluation step limits
48 #if TEST_STD_VER > 20
49   static_assert(test());
50 #endif
51 
52   return 0;
53 }
54