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 // size_t count() const; // constexpr since C++23 10 11 #include <bitset> 12 #include <cassert> 13 14 #include "test_macros.h" 15 16 template <std::size_t N> test_size()17TEST_CONSTEXPR_CXX23 void test_size() { 18 const std::bitset<N> v; 19 assert(v.size() == N); 20 } 21 test()22TEST_CONSTEXPR_CXX23 bool test() { 23 test_size<0>(); 24 test_size<1>(); 25 test_size<31>(); 26 test_size<32>(); 27 test_size<33>(); 28 test_size<63>(); 29 test_size<64>(); 30 test_size<65>(); 31 test_size<1000>(); 32 33 return true; 34 } 35 main(int,char **)36int main(int, char**) { 37 test(); 38 #if TEST_STD_VER > 20 39 static_assert(test()); 40 #endif 41 42 return 0; 43 } 44