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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// bitset(unsigned long long val); // constexpr since C++23
#include <bitset>
#include <cassert>
#include <algorithm> // for 'min' and 'max'
#include <cstddef>
#include "test_macros.h"
TEST_MSVC_DIAGNOSTIC_IGNORED(6294) // Ill-defined for-loop: initial condition does not satisfy test. Loop body not executed.
template <std::size_t N>
TEST_CONSTEXPR_CXX23 void test_val_ctor()
{
{
TEST_CONSTEXPR std::bitset<N> v(0xAAAAAAAAAAAAAAAAULL);
assert(v.size() == N);
std::size_t M = std::min<std::size_t>(v.size(), 64);
for (std::size_t i = 0; i < M; ++i)
assert(v[i] == ((i & 1) != 0));
for (std::size_t i = M; i < v.size(); ++i)
assert(v[i] == false);
}
#if TEST_STD_VER >= 11
{
constexpr std::bitset<N> v(0xAAAAAAAAAAAAAAAAULL);
static_assert(v.size() == N, "");
}
#endif
}
TEST_CONSTEXPR_CXX23 bool test() {
test_val_ctor<0>();
test_val_ctor<1>();
test_val_ctor<31>();
test_val_ctor<32>();
test_val_ctor<33>();
test_val_ctor<63>();
test_val_ctor<64>();
test_val_ctor<65>();
test_val_ctor<1000>();
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 20
static_assert(test());
#endif
return 0;
}
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