55 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// bool any() const; // constexpr since C++2310 11#include <bitset>12#include <cassert>13#include <cstddef>14 15#include "test_macros.h"16 17template <std::size_t N>18TEST_CONSTEXPR_CXX23 void test_any() {19 std::bitset<N> v;20 v.reset();21 assert(v.any() == false);22 v.set();23 assert(v.any() == (N != 0));24 if (v.size() > 1) {25 v[N/2] = false;26 assert(v.any() == true);27 v.reset();28 v[N/2] = true;29 assert(v.any() == true);30 }31}32 33TEST_CONSTEXPR_CXX23 bool test() {34 test_any<0>();35 test_any<1>();36 test_any<31>();37 test_any<32>();38 test_any<33>();39 test_any<63>();40 test_any<64>();41 test_any<65>();42 test_any<1000>();43 44 return true;45}46 47int main(int, char**) {48 test();49#if TEST_STD_VER > 2050 static_assert(test());51#endif52 53 return 0;54}55