glibc/libio/putchar.c

/* Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include "libioP.h"
#include "stdio.h"

#undef putchar

int
putchar (c)
     int c;
{
  int result;
  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile,
			       _IO_stdout);
  _IO_flockfile (_IO_stdout);
  result = _IO_putc_unlocked (c, _IO_stdout);
  _IO_funlockfile (_IO_stdout);
  _IO_cleanup_region_end (0);
  return result;
}

#if defined weak_alias && !defined _IO_MTSAFE_IO
#undef putchar_unlocked
weak_alias (putchar, putchar_unlocked)
#endif