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>& flip(); // 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_flip_all()20TEST_CONSTEXPR_CXX23 void test_flip_all() { 21 std::vector<std::bitset<N> > const cases = get_test_cases<N>(); 22 for (std::size_t c = 0; c != cases.size(); ++c) { 23 std::bitset<N> v1 = cases[c]; 24 std::bitset<N> v2 = v1; 25 v2.flip(); 26 for (std::size_t i = 0; i < v1.size(); ++i) 27 assert(v2[i] == ~v1[i]); 28 } 29 } 30 test()31TEST_CONSTEXPR_CXX23 bool test() { 32 test_flip_all<0>(); 33 test_flip_all<1>(); 34 test_flip_all<31>(); 35 test_flip_all<32>(); 36 test_flip_all<33>(); 37 test_flip_all<63>(); 38 test_flip_all<64>(); 39 test_flip_all<65>(); 40 41 return true; 42 } 43 main(int,char **)44int main(int, char**) { 45 test(); 46 test_flip_all<1000>(); // not in constexpr because of constexpr evaluation step limits 47 #if TEST_STD_VER > 20 48 static_assert(test()); 49 #endif 50 51 return 0; 52 } 53