/* An ftell() function that works around platform bugs.
- Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <stdio.h>
#include <errno.h>
-/* Get off_t. */
-#include <unistd.h>
-
-/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */
-#ifndef EOVERFLOW
-# define EOVERFLOW E2BIG
-#endif
+#include <limits.h>
long
ftell (FILE *fp)
{
/* Use the replacement ftello function with all its workarounds. */
off_t offset = ftello (fp);
- if (offset == (long)offset)
- return (long)offset;
+ if (LONG_MIN <= offset && offset <= LONG_MAX)
+ return /* (long) */ offset;
else
{
errno = EOVERFLOW;