about summary refs log tree commit diff
path: root/stdio/ungetc.c
diff options
context:
space:
mode:
Diffstat (limited to 'stdio/ungetc.c')
-rw-r--r--stdio/ungetc.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/stdio/ungetc.c b/stdio/ungetc.c
deleted file mode 100644
index 34304aa3fd..0000000000
--- a/stdio/ungetc.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Copyright (C) 1991, 1993, 1996, 1997 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <errno.h>
-#include <stdio.h>
-
-
-/* Push the character C back onto the input stream of STREAM.  */
-int
-ungetc (c, stream)
-     int c;
-     FILE *stream;
-{
-  if (!__validfp (stream) || !stream->__mode.__read)
-    {
-      __set_errno (EINVAL);
-      return EOF;
-    }
-
-  if (c == EOF)
-    return EOF;
-
-  if (stream->__pushed_back)
-    /* There is already a char pushed back.  */
-    return EOF;
-
-  if ((stream->__linebuf_active || stream->__put_limit > stream->__buffer) &&
-      /* This is a read-write stream with something in its buffer.
-	 Flush the stream.  */
-      __flshfp (stream, EOF) == EOF)
-    return EOF;
-
-  stream->__pushback = (unsigned char) c;
-  /* Tell __fillbf we've pushed back a char.  */
-  stream->__pushed_back = 1;
-  stream->__pushback_bufp = stream->__bufp;
-  /* Make the next getc call __fillbf.  It will return C.  */
-  stream->__bufp = stream->__get_limit;
-
-  /* We just gave it another character to read, so it's not at EOF.  */
-  stream->__eof = 0;
-
-  return stream->__pushback;
-}