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// 2003-05-01 Petur Runolfsson <peturr02@ru.is>

// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 

// Free Software Foundation

//

// 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/>.

// { dg-require-fileio "" }

#include <ext/stdio_sync_filebuf.h>

#include <cstring>

#include <testsuite_hooks.h>

void test01()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  const char* c_lit = "black pearl jasmine tea";

  unsigned size = strlen(c_lit);

  const char* name = "stdiobuf-1.txt";

  FILE* fout = fopen(name, "w");

  VERIFY( fwrite(c_lit, 1, size, fout) == size );

  fclose(fout);

  FILE* fin = fopen(name, "r");

  __gnu_cxx::stdio_sync_filebuf<char> sbuf(fin);

  VERIFY( sbuf.sgetc() == c_lit[0] );

  VERIFY( getc(fin) == c_lit[0] );

  VERIFY( sbuf.sgetc() == c_lit[1] );

  VERIFY( sbuf.sbumpc() == c_lit[1] );

  VERIFY( ungetc('Z', fin) == 'Z' );

  VERIFY( sbuf.sbumpc() == 'Z' );

  VERIFY( getc(fin) == c_lit[2] );

  VERIFY( sbuf.sputbackc('X') == 'X' );

  VERIFY( getc(fin) == 'X' );

  char buf[5];

  memset(buf, 'x', 5);

  VERIFY( sbuf.sgetn(buf, 5) == 5 );

  VERIFY( !memcmp(buf, c_lit + 3, 5) );

  VERIFY( getc(fin) == c_lit[8] );

  fclose(fin);

}

int main ()

{

  test01();

  return 0;

}