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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_filebuf / setbuf / char / 12875-2.cc

// Copyright (C) 2003-2018 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 <cstdio>
#include <cstring>
#include <testsuite_hooks.h>

// libstdc++/12875
void test02()
{
  using namespace std;

  const char* name = "tmp_setbuf5";
  static char buf[1024];
  
  filebuf out;
  out.open(name, ios_base::out);
  streamsize r = out.sputn("Hello,", 6);
  VERIFY( r == 6 );
  out.pubsetbuf(buf, 1024);
  r = out.sputn(" world", 6);
  VERIFY( r == 6 );
  VERIFY( out.close() );
  
  FILE* in = fopen(name, "r");
  char str[256];
  VERIFY( fgets(str, 256, in) );
  VERIFY( !strcmp(str, "Hello, world") );
  fclose(in);
}

int main()
{
  test02();
  return 0;
}