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>>(size_t pos) const; 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_right_shift() 30{ 31 for (std::size_t s = 0; s <= N+1; ++s) 32 { 33 std::bitset<N> v1 = make_bitset<N>(); 34 std::bitset<N> v2 = v1; 35 assert((v1 >>= s) == (v2 >> s)); 36 } 37} 38 39int main() 40{ 41 test_right_shift<0>(); 42 test_right_shift<1>(); 43 test_right_shift<31>(); 44 test_right_shift<32>(); 45 test_right_shift<33>(); 46 test_right_shift<63>(); 47 test_right_shift<64>(); 48 test_right_shift<65>(); 49 test_right_shift<1000>(); 50} 51