//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // bool none() const; // constexpr since C++23 #include #include #include #include "test_macros.h" template TEST_CONSTEXPR_CXX23 void test_none() { std::bitset v; v.reset(); assert(v.none() == true); v.set(); assert(v.none() == (N == 0)); if (v.size() > 1) { v[N/2] = false; assert(v.none() == false); v.reset(); v[N/2] = true; assert(v.none() == false); } } TEST_CONSTEXPR_CXX23 bool test() { test_none<0>(); test_none<1>(); test_none<31>(); test_none<32>(); test_none<33>(); test_none<63>(); test_none<64>(); test_none<65>(); test_none<1000>(); return true; } int main(int, char**) { test(); #if TEST_STD_VER > 20 static_assert(test()); #endif return 0; }