cxx/test/utilities/template.bitset/bitset.members/flip_all.pass.cpp

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//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // test bitset<N>& flip(); #include <bitset> #include <cstdlib> #include <cassert> template <std::size_t N> std::bitset<N> make_bitset() { std::bitset<N> v; for (std::size_t i = 0; i < N; ++i) v[i] = static_cast<bool>(std::rand() & 1); return v; } template <std::size_t N> void test_flip_all() { std::bitset<N> v1 = make_bitset<N>(); std::bitset<N> v2 = v1; v2.flip(); for (std::size_t i = 0; i < N; ++i) assert(v2[i] == ~v1[i]); } int main() { test_flip_all<0>(); test_flip_all<1>(); test_flip_all<31>(); test_flip_all<32>(); test_flip_all<33>(); test_flip_all<63>(); test_flip_all<64>(); test_flip_all<65>(); test_flip_all<1000>(); }