blob: 01e3311619bc528b002998e22639b188249b9ae3 [file] [log] [blame]
// 2004-10-01 Paolo Carlini <pcarlini@suse.de>
// Copyright (C) 2004-2021 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/>.
// 27.7.1.3 Overridden virtual functions [lib.stringbuf.virtuals]
#include <sstream>
#include <testsuite_hooks.h>
class my_stringbuf : public std::stringbuf
{
public:
my_stringbuf(const std::string& str, std::ios_base::openmode mode)
: std::stringbuf(str, mode) { }
int_type
pub_pbackfail(int_type __c)
{ return this->pbackfail(__c); }
};
// We weren't enforcing 27.7.1.3/2, bullet 2: "... and if
// mode & ios_base::out is nonzero, ..."
void test01()
{
using namespace std;
typedef my_stringbuf::int_type int_type;
typedef my_stringbuf::traits_type traits_type;
my_stringbuf sbuf("any", ios_base::in);
int_type c = sbuf.sbumpc();
VERIFY( c == 'a' );
c = sbuf.pub_pbackfail('x');
VERIFY( c == traits_type::eof() );
VERIFY( sbuf.str() == "any" );
c = sbuf.sgetc();
VERIFY( c == 'n' );
}
int main()
{
test01();
return 0;
}