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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 reserve(size_type res_arg);
// This test relies on https://llvm.org/PR45368 being fixed, which isn't in
// older Apple dylibs
//
// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
#include <string>
#include <stdexcept>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void
test(typename S::size_type min_cap, typename S::size_type erased_index, typename S::size_type res_arg)
{
S s(min_cap, 'a');
s.erase(erased_index);
assert(s.size() == erased_index);
assert(s.capacity() >= min_cap); // Check that we really have at least this capacity.
#if TEST_STD_VER > 17
typename S::size_type old_cap = s.capacity();
#endif
S s0 = s;
if (res_arg <= s.max_size())
{
s.reserve(res_arg);
LIBCPP_ASSERT(s.__invariants());
assert(s == s0);
assert(s.capacity() >= res_arg);
assert(s.capacity() >= s.size());
#if TEST_STD_VER > 17
assert(s.capacity() >= old_cap); // reserve never shrinks as of P0966 (C++20)
#endif
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
s.reserve(res_arg);
LIBCPP_ASSERT(s.__invariants());
assert(false);
}
catch (std::length_error&)
{
assert(res_arg > s.max_size());
}
}
#endif
}
int main(int, char**)
{
{
typedef std::string S;
{
test<S>(0, 0, 5);
test<S>(0, 0, 10);
test<S>(0, 0, 50);
}
{
test<S>(100, 50, 5);
test<S>(100, 50, 10);
test<S>(100, 50, 50);
test<S>(100, 50, 100);
test<S>(100, 50, 1000);
test<S>(100, 50, S::npos);
}
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
{
test<S>(0, 0, 5);
test<S>(0, 0, 10);
test<S>(0, 0, 50);
}
{
test<S>(100, 50, 5);
test<S>(100, 50, 10);
test<S>(100, 50, 50);
test<S>(100, 50, 100);
test<S>(100, 50, 1000);
test<S>(100, 50, S::npos);
}
}
#endif
return 0;
}
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