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>& rhs); 11 12 #include <bitset> 13 #include <cstdlib> 14 #include <cassert> 15 16 #pragma clang diagnostic ignored "-Wtautological-compare" 17 18 template <std::size_t N> 19 std::bitset<N> 20 make_bitset() 21 { 22 std::bitset<N> v; 23 for (std::size_t i = 0; i < N; ++i) 24 v[i] = static_cast<bool>(std::rand() & 1); 25 return v; 26 } 27 28 template <std::size_t N> 29 void test_op_and_eq() 30 { 31 std::bitset<N> v1 = make_bitset<N>(); 32 std::bitset<N> v2 = make_bitset<N>(); 33 std::bitset<N> v3 = v1; 34 v1 &= v2; 35 for (std::size_t i = 0; i < N; ++i) 36 assert(v1[i] == (v3[i] && v2[i])); 37 } 38 39 int main() 40 { 41 test_op_and_eq<0>(); 42 test_op_and_eq<1>(); 43 test_op_and_eq<31>(); 44 test_op_and_eq<32>(); 45 test_op_and_eq<33>(); 46 test_op_and_eq<63>(); 47 test_op_and_eq<64>(); 48 test_op_and_eq<65>(); 49 test_op_and_eq<1000>(); 50 } 51
