55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <string>
|
|
|
|
// bool empty() const noexcept;
|
|
|
|
#include <string>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "min_allocator.h"
|
|
|
|
template <class S>
|
|
TEST_CONSTEXPR_CXX20 void
|
|
test(const S& s)
|
|
{
|
|
ASSERT_NOEXCEPT(s.empty());
|
|
assert(s.empty() == (s.size() == 0));
|
|
}
|
|
|
|
bool test() {
|
|
{
|
|
typedef std::string S;
|
|
test(S());
|
|
test(S("123"));
|
|
test(S("12345678901234567890123456789012345678901234567890"));
|
|
}
|
|
#if TEST_STD_VER >= 11
|
|
{
|
|
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
|
|
test(S());
|
|
test(S("123"));
|
|
test(S("12345678901234567890123456789012345678901234567890"));
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
test();
|
|
#if TEST_STD_VER > 17
|
|
// static_assert(test());
|
|
#endif
|
|
|
|
return 0;
|
|
}
|