glibc/libio/putc.c
2017-08-31 14:48:25 +02:00

45 lines
1.2 KiB
C

/* Copyright (C) 1991-2017 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include "libioP.h"
#include "stdio.h"
#undef _IO_putc
int
_IO_putc (int c, _IO_FILE *fp)
{
int result;
CHECK_FILE (fp, EOF);
if (!_IO_need_lock (fp))
return _IO_putc_unlocked (c, fp);
_IO_acquire_lock (fp);
result = _IO_putc_unlocked (c, fp);
_IO_release_lock (fp);
return result;
}
libc_hidden_def (_IO_putc)
#undef putc
weak_alias (_IO_putc, putc)
#ifndef _IO_MTSAFE_IO
#undef putc_unlocked
weak_alias (_IO_putc, putc_unlocked)
#endif