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58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// test bitset<N>& operator&=(const bitset<N>& rhs);
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#include <bitset>
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#include <cstdlib>
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#include <cassert>
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#include "test_macros.h"
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#if defined(TEST_COMPILER_CLANG)
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#pragma clang diagnostic ignored "-Wtautological-compare"
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#elif defined(TEST_COMPILER_C1XX)
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#pragma warning(disable: 6294) // Ill-defined for-loop: initial condition does not satisfy test. Loop body not executed.
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#endif
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template <std::size_t N>
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std::bitset<N>
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make_bitset()
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{
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std::bitset<N> v;
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for (std::size_t i = 0; i < N; ++i)
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v[i] = static_cast<bool>(std::rand() & 1);
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return v;
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}
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template <std::size_t N>
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void test_op_and_eq()
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{
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std::bitset<N> v1 = make_bitset<N>();
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std::bitset<N> v2 = make_bitset<N>();
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std::bitset<N> v3 = v1;
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v1 &= v2;
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for (std::size_t i = 0; i < N; ++i)
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assert(v1[i] == (v3[i] && v2[i]));
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}
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int main(int, char**)
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{
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test_op_and_eq<0>();
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test_op_and_eq<1>();
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test_op_and_eq<31>();
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test_op_and_eq<32>();
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test_op_and_eq<33>();
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test_op_and_eq<63>();
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test_op_and_eq<64>();
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test_op_and_eq<65>();
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test_op_and_eq<1000>();
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return 0;
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}
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