glibc/libio/putchar.c

/* Copyright (C) 1991, 1995, 1996 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., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

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

#undef putchar

int
putchar (c)
     int c;
{
  int result;
  __libc_cleanup_region_start (&_IO_funlockfile, _IO_stdout);
  _IO_flockfile (_IO_stdout);
  result = _IO_putc_unlocked (c, _IO_stdout);
  __libc_cleanup_region_end (1);
  return result;
}

#ifdef _IO_MTSAFE_IO
# undef putchar_locked

weak_alias (putchar, putchar_locked)
#endif