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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// <sstream>
// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
// class basic_stringstream
// basic_string<charT, traits, Allocator> str() &&;
#include <sstream>
#include <cassert>
#include "make_string.h"
#include "test_macros.h"
#define STR(S) MAKE_STRING(CharT, S)
template <class CharT>
static void test() {
{
std::basic_stringstream<CharT> ss(STR("testing"));
std::basic_string<CharT> s = std::move(ss).str();
assert(s == STR("testing"));
assert(ss.view().empty());
}
{
std::basic_stringstream<CharT> ss;
std::basic_string<CharT> s = std::move(ss).str();
assert(s.empty());
assert(ss.view().empty());
}
{
std::basic_stringstream<CharT> ss(
STR("a very long string that exceeds the small string optimization buffer length"));
const CharT* p = ss.view().data();
std::basic_string<CharT> s = std::move(ss).str();
assert(s.data() == p); // the allocation was pilfered
assert(ss.view().empty());
}
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}
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