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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
//
//===----------------------------------------------------------------------===//
// template <class charT>
// explicit bitset(const charT* str,
// typename basic_string_view<charT>::size_type n = basic_string_view<charT>::npos, // s/string/string_view since C++26
// charT zero = charT('0'), charT one = charT('1')); // constexpr since C++23
#include <bitset>
#include <algorithm> // for 'min' and 'max'
#include <cassert>
#include <stdexcept> // for 'invalid_argument'
#include <type_traits>
#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_char_pointer_ctor()
{
#ifndef TEST_HAS_NO_EXCEPTIONS
if (!TEST_IS_CONSTANT_EVALUATED) {
try {
std::bitset<N> v("xxx1010101010xxxx");
assert(false);
}
catch (std::invalid_argument&) {}
}
#endif
static_assert(!std::is_convertible<const char*, std::bitset<N> >::value, "");
static_assert(std::is_constructible<std::bitset<N>, const char*>::value, "");
{
const char s[] = "1010101010";
std::bitset<N> v(s);
std::size_t M = std::min<std::size_t>(v.size(), 10);
for (std::size_t i = 0; i < M; ++i)
assert(v[i] == (s[M - 1 - i] == '1'));
for (std::size_t i = 10; i < v.size(); ++i)
assert(v[i] == false);
}
{
const char s[] = "1010101010";
std::bitset<N> v(s, 10);
std::size_t M = std::min<std::size_t>(v.size(), 10);
for (std::size_t i = 0; i < M; ++i)
assert(v[i] == (s[M - 1 - i] == '1'));
for (std::size_t i = 10; i < v.size(); ++i)
assert(v[i] == false);
}
{
const char s[] = "1a1a1a1a1a";
std::bitset<N> v(s, 10, 'a');
std::size_t M = std::min<std::size_t>(v.size(), 10);
for (std::size_t i = 0; i < M; ++i)
assert(v[i] == (s[M - 1 - i] == '1'));
for (std::size_t i = 10; i < v.size(); ++i)
assert(v[i] == false);
}
{
const char s[] = "bababababa";
std::bitset<N> v(s, 10, 'a', 'b');
std::size_t M = std::min<std::size_t>(v.size(), 10);
for (std::size_t i = 0; i < M; ++i)
assert(v[i] == (s[M - 1 - i] == 'b'));
for (std::size_t i = 10; i < v.size(); ++i)
assert(v[i] == false);
}
}
TEST_CONSTEXPR_CXX23 bool test() {
test_char_pointer_ctor<0>();
test_char_pointer_ctor<1>();
test_char_pointer_ctor<31>();
test_char_pointer_ctor<32>();
test_char_pointer_ctor<33>();
test_char_pointer_ctor<63>();
test_char_pointer_ctor<64>();
test_char_pointer_ctor<65>();
test_char_pointer_ctor<1000>();
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 20
static_assert(test());
#endif
return 0;
}
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