diff options
Diffstat (limited to 'stdio/ftell.c')
-rw-r--r-- | stdio/ftell.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/stdio/ftell.c b/stdio/ftell.c deleted file mode 100644 index 03c3ebc332..0000000000 --- a/stdio/ftell.c +++ /dev/null @@ -1,54 +0,0 @@ -/* Copyright (C) 1991, 1992, 1994, 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> - -/* Return the offset in bytes from the beginning - of the file of the file position of STREAM. */ -long int -ftell (stream) - FILE *stream; -{ - long int pos; - - if (!__validfp (stream)) - { - __set_errno (EINVAL); - return -1L; - } - - if (__stdio_check_offset (stream) == EOF) - return -1L; - - /* Start with the file position associated with the beginning - of our buffer. */ - pos = stream->__target; - - if (stream->__pushed_back) - /* ungetc was just called, so our real buffer pointer is squirreled - away in STREAM->__pushback_bufp, not in STREAM->__bufp as normal. - Calling ungetc is supposed to decrement the file position. ANSI - says the file position is unspecified if you ungetc when the - position is zero; -1 seems as good as anything to me. */ - pos += stream->__pushback_bufp - stream->__buffer - 1; - else - pos += stream->__bufp - stream->__buffer; - - return pos; -} |