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> operator>>(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_right_shift()20TEST_CONSTEXPR_CXX23 bool test_right_shift() { 21 std::vector<std::bitset<N> > const cases = get_test_cases<N>(); 22 for (std::size_t c = 0; c != cases.size(); ++c) { 23 for (std::size_t s = 0; s <= N+1; ++s) { 24 std::bitset<N> v1 = cases[c]; 25 std::bitset<N> v2 = v1; 26 assert((v1 >>= s) == (v2 >> s)); 27 } 28 } 29 return true; 30 } 31 main(int,char **)32int main(int, char**) { 33 test_right_shift<0>(); 34 test_right_shift<1>(); 35 test_right_shift<31>(); 36 test_right_shift<32>(); 37 test_right_shift<33>(); 38 test_right_shift<63>(); 39 test_right_shift<64>(); 40 test_right_shift<65>(); 41 test_right_shift<1000>(); // not in constexpr because of constexpr evaluation step limits 42 #if TEST_STD_VER > 20 43 static_assert(test_right_shift<0>()); 44 static_assert(test_right_shift<1>()); 45 static_assert(test_right_shift<31>()); 46 static_assert(test_right_shift<32>()); 47 static_assert(test_right_shift<33>()); 48 static_assert(test_right_shift<63>()); 49 static_assert(test_right_shift<64>()); 50 static_assert(test_right_shift<65>()); 51 #endif 52 53 return 0; 54 } 55