mirror of git://gcc.gnu.org/git/gcc.git
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
// { dg-do run { target c++11 } }
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// Copyright (C) 2015-2018 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 22.3.3.2.3 Buffer conversions
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#include <locale>
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#include <sstream>
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#include <testsuite_hooks.h>
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#include <testsuite_common_types.h>
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template<typename Elem>
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struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
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template<typename Elem>
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using buf_conv = std::wbuffer_convert<cvt<Elem>, Elem>;
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using std::string;
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using std::stringstream;
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using std::wstring;
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using std::wstringstream;
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void test01()
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{
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buf_conv<wchar_t> buf;
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std::stringbuf sbuf;
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VERIFY( buf.rdbuf() == nullptr );
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VERIFY( buf.rdbuf(&sbuf) == nullptr );
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VERIFY( buf.rdbuf() == &sbuf );
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VERIFY( buf.rdbuf(nullptr) == &sbuf );
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__gnu_test::implicitly_default_constructible test;
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test.operator()<buf_conv<wchar_t>>(); // P0935R0
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}
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void test02()
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{
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std::stringbuf sbuf;
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buf_conv<char> buf(&sbuf); // noconv
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stringstream ss;
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ss.std::ios::rdbuf(&buf);
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string input = "King for a day...";
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ss << input << std::flush;
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string output = sbuf.str();
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VERIFY( input == output );
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}
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void test03()
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{
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std::stringbuf sbuf;
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buf_conv<wchar_t> buf(&sbuf);
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wstringstream ss;
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ss.std::wios::rdbuf(&buf);
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wstring input = L"Fool for a lifetime";
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ss << input << std::flush;
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string output = sbuf.str();
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VERIFY( output == "Fool for a lifetime" );
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}
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int main()
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{
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test01();
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test02();
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test03();
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}
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