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// { dg-do run { target c++11 } }
// Copyright (C) 2015-2019 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/>.
// 22.3.3.2.2 String conversions
#include <locale>
#include <string>
#include <testsuite_hooks.h>
template<typename Elem>
struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
template<typename Elem>
using str_conv = std::wstring_convert<cvt<Elem>, Elem>;
using std::string;
using std::u16string;
using std::u32string;
// test construction with state, for partial conversions
void test01()
{
typedef str_conv<char> wsc;
wsc c;
string input = u8"\u00a3 shillings pence";
string woutput = c.from_bytes(input.substr(0, 1));
auto partial_state = c.state();
auto partial_count = c.converted();
auto woutput2 = c.from_bytes(u8"state reset on next conversion");
VERIFY( woutput2 == u8"state reset on next conversion" );
wsc c2(new cvt<char>, partial_state);
woutput += c2.from_bytes(input.substr(partial_count));
VERIFY( u8"\u00a3 shillings pence" == woutput );
string roundtrip = c2.to_bytes(woutput);
VERIFY( input == roundtrip );
}
void test02()
{
typedef str_conv<char16_t> wsc;
wsc c;
string input = u8"\u00a3 shillings pence";
u16string woutput = c.from_bytes(input.substr(0, 1));
auto partial_state = c.state();
auto partial_count = c.converted();
auto woutput2 = c.from_bytes(u8"state reset on next conversion");
VERIFY( woutput2 == u"state reset on next conversion" );
wsc c2(new cvt<char16_t>, partial_state);
woutput += c2.from_bytes(input.substr(partial_count));
VERIFY( u"\u00a3 shillings pence" == woutput );
string roundtrip = c2.to_bytes(woutput);
VERIFY( input == roundtrip );
}
void test03()
{
typedef str_conv<char32_t> wsc;
wsc c;
string input = u8"\u00a3 shillings pence";
u32string woutput = c.from_bytes(input.substr(0, 1));
auto partial_state = c.state();
auto partial_count = c.converted();
auto woutput2 = c.from_bytes(u8"state reset on next conversion");
VERIFY( woutput2 == U"state reset on next conversion" );
wsc c2(new cvt<char32_t>, partial_state);
woutput += c2.from_bytes(input.substr(partial_count));
VERIFY( U"\u00a3 shillings pence" == woutput );
string roundtrip = c2.to_bytes(woutput);
VERIFY( input == roundtrip );
}
int main()
{
test01();
test02();
test03();
}
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