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// Copyright (C) 2020-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 29.8.2.4 basic_stringbuf member functions [stringbuf.members]
// { dg-do run { target c++20 } }
// { dg-require-effective-target cxx11_abi }
#include <sstream>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
void test01()
{
const std::string s0 = "this is not a short string";
std::stringbuf sb;
sb.str(s0);
VERIFY( sb.str() == s0 );
VERIFY( sb.str() == s0 );
using Alloc = __gnu_test::uneq_allocator<char>;
const Alloc a1(1);
std::basic_string<char, std::char_traits<char>, Alloc> s1 = sb.str(a1);
VERIFY( s1.get_allocator() == a1 );
VERIFY( sb.str(a1).get_allocator() == a1 );
VERIFY( sb.str(a1) == s1 );
VERIFY( std::move(sb).str(a1) == s1 );
VERIFY( std::move(sb).str(a1) == s1 );
const Alloc a2(2);
VERIFY( sb.str(a2).get_allocator() == a2 );
VERIFY( sb.str(a2) == s1 );
VERIFY( std::move(sb).str() == s0 );
VERIFY( std::move(sb).str().empty() );
VERIFY( sb.str().empty() );
VERIFY( sb.str(a1).empty() );
}
void test02()
{
std::stringbuf sb("123");
std::string str = "ABCDEF";
sb.sputn(str.c_str(), str.size());
VERIFY( sb.str() == str );
VERIFY( std::move(sb).str() == str );
VERIFY( std::move(sb).str().empty() );
}
void test03()
{
std::stringbuf sb;
using Alloc = __gnu_test::tracker_allocator<char>;
using Str = std::basic_string<char, std::char_traits<char>, Alloc>;
Str s1("string that is not short, quite long even");
auto count1 = __gnu_test::tracker_allocator_counter::get_allocation_count();
sb.str(s1);
auto count2 = __gnu_test::tracker_allocator_counter::get_allocation_count();
VERIFY( count1 == count2 );
VERIFY( sb.str() == s1.c_str() );
}
void test04()
{
std::stringbuf sb;
const std::string str = "Another quite long string, not at all short";
std::string str2 = str;
sb.str(std::move(str2));
VERIFY( str2.empty() );
VERIFY( sb.str() == str );
}
int main()
{
test01();
test02();
test03();
test04();
}
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