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 // bool test(size_t pos) const; // 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_test()20TEST_CONSTEXPR_CXX23 void test_test() { 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> const v = cases[c]; 24 if (v.size() > 0) { 25 std::size_t middle = v.size() / 2; 26 bool b = v.test(middle); 27 assert(b == v[middle]); 28 } 29 } 30 } 31 test()32TEST_CONSTEXPR_CXX23 bool test() { 33 test_test<0>(); 34 test_test<1>(); 35 test_test<31>(); 36 test_test<32>(); 37 test_test<33>(); 38 test_test<63>(); 39 test_test<64>(); 40 test_test<65>(); 41 42 return true; 43 } 44 main(int,char **)45int main(int, char**) { 46 test(); 47 test_test<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