1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // test bitset<N> operator&(const bitset<N>& lhs, const bitset<N>& rhs); 11 12 #include <bitset> 13 #include <cstdlib> 14 #include <cassert> 15 16 #if defined(__clang__) 17 #pragma clang diagnostic ignored "-Wtautological-compare" 18 #endif 19 20 template <std::size_t N> 21 std::bitset<N> 22 make_bitset() 23 { 24 std::bitset<N> v; 25 for (std::size_t i = 0; i < N; ++i) 26 v[i] = static_cast<bool>(std::rand() & 1); 27 return v; 28 } 29 30 template <std::size_t N> 31 void test_op_and() 32 { 33 std::bitset<N> v1 = make_bitset<N>(); 34 std::bitset<N> v2 = make_bitset<N>(); 35 std::bitset<N> v3 = v1; 36 assert((v1 & v2) == (v3 &= v2)); 37 } 38 39 int main() 40 { 41 test_op_and<0>(); 42 test_op_and<1>(); 43 test_op_and<31>(); 44 test_op_and<32>(); 45 test_op_and<33>(); 46 test_op_and<63>(); 47 test_op_and<64>(); 48 test_op_and<65>(); 49 test_op_and<1000>(); 50 } 51
