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>& flip(); 11 12#include <bitset> 13#include <cstdlib> 14#include <cassert> 15 16#pragma clang diagnostic ignored "-Wtautological-compare" 17 18template <std::size_t N> 19std::bitset<N> 20make_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 28template <std::size_t N> 29void test_flip_all() 30{ 31 std::bitset<N> v1 = make_bitset<N>(); 32 std::bitset<N> v2 = v1; 33 v2.flip(); 34 for (std::size_t i = 0; i < N; ++i) 35 assert(v2[i] == ~v1[i]); 36} 37 38int main() 39{ 40 test_flip_all<0>(); 41 test_flip_all<1>(); 42 test_flip_all<31>(); 43 test_flip_all<32>(); 44 test_flip_all<33>(); 45 test_flip_all<63>(); 46 test_flip_all<64>(); 47 test_flip_all<65>(); 48 test_flip_all<1000>(); 49} 50