Subversion Repositories openrisc_me

// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>

// Copyright (C) 2001, 2002, 2003, 2009 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/>.

// 27.8.1.4 Overridden virtual functions

// { dg-require-fileio "" }

#include <fstream>

#include <testsuite_hooks.h>

const char name_08[] = "filebuf_virtuals-8.txt"; // empty file, need to create

class OverBuf : public std::filebuf

{

public:

  int_type pub_overflow(int_type c = traits_type::eof())

  { return std::filebuf::overflow(c); }

};

// libstdc++/9988

// filebuf::overflow writes EOF to file

void test15()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  OverBuf fb;

  fb.open(name_08, ios_base::out | ios_base::trunc);

  fb.sputc('a');

  fb.pub_overflow('b');

  fb.pub_overflow();

  fb.sputc('c');

  fb.close();

  filebuf fbin;

  fbin.open(name_08, ios_base::in);

  filebuf::int_type c;

  c = fbin.sbumpc();

  VERIFY( c == 'a' );

  c = fbin.sbumpc();

  VERIFY( c == 'b' );

  c = fbin.sbumpc();

  VERIFY( c == 'c' );

  c = fbin.sbumpc();

  VERIFY( c == filebuf::traits_type::eof() );

  fbin.close();

}

int main()

{

  test15();

  return 0;

}