cxx/test/utilities/template.bitset/bitset.members/op_eq_eq.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: // bool operator==(const bitset<N>& rhs) const; // bool operator!=(const bitset<N>& rhs) const; #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_equality() { const std::bitset<N> v1 = make_bitset<N>(); std::bitset<N> v2 = v1; assert(v1 == v2); if (N > 0) { v2[N/2].flip(); assert(v1 != v2); } } int main() { test_equality<0>(); test_equality<1>(); test_equality<31>(); test_equality<32>(); test_equality<33>(); test_equality<63>(); test_equality<64>(); test_equality<65>(); test_equality<1000>(); }