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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
//
//===----------------------------------------------------------------------===//
// <string>
// void shrink_to_fit();
#include <string>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void
test(S s)
{
typename S::size_type old_cap = s.capacity();
S s0 = s;
s.shrink_to_fit();
LIBCPP_ASSERT(s.__invariants());
assert(s == s0);
assert(s.capacity() <= old_cap);
assert(s.capacity() >= s.size());
}
int main(int, char**)
{
{
typedef std::string S;
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
#endif
return 0;
}
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