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 // test bitset<N>& operator|=(const bitset<N>& rhs); 10 11 #include <bitset> 12 #include <cstdlib> 13 #include <cassert> 14 15 #include "test_macros.h" 16 17 #if defined(TEST_COMPILER_CLANG) 18 #pragma clang diagnostic ignored "-Wtautological-compare" 19 #elif defined(TEST_COMPILER_C1XX) 20 #pragma warning(disable: 6294) // Ill-defined for-loop: initial condition does not satisfy test. Loop body not executed. 21 #endif 22 23 template <std::size_t N> 24 std::bitset<N> make_bitset()25make_bitset() 26 { 27 std::bitset<N> v; 28 for (std::size_t i = 0; i < N; ++i) 29 v[i] = static_cast<bool>(std::rand() & 1); 30 return v; 31 } 32 33 template <std::size_t N> test_op_or_eq()34void test_op_or_eq() 35 { 36 std::bitset<N> v1 = make_bitset<N>(); 37 std::bitset<N> v2 = make_bitset<N>(); 38 std::bitset<N> v3 = v1; 39 v1 |= v2; 40 for (std::size_t i = 0; i < N; ++i) 41 assert(v1[i] == (v3[i] || v2[i])); 42 } 43 main(int,char **)44int main(int, char**) 45 { 46 test_op_or_eq<0>(); 47 test_op_or_eq<1>(); 48 test_op_or_eq<31>(); 49 test_op_or_eq<32>(); 50 test_op_or_eq<33>(); 51 test_op_or_eq<63>(); 52 test_op_or_eq<64>(); 53 test_op_or_eq<65>(); 54 test_op_or_eq<1000>(); 55 56 return 0; 57 } 58