/* Test of fseeko() function.
- Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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 <config.h>
+/* None of the files accessed by this test are large, so disable the
+ fseek link warning if we are not using the gnulib fseek module. */
+#define _GL_NO_LARGE_FILES
#include <stdio.h>
-#include <stdlib.h>
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
+#include "signature.h"
+SIGNATURE_CHECK (fseeko, int, (FILE *, off_t, int));
+
+
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
int
-main (int argc, char **argv)
+main (int argc, char **argv _GL_UNUSED)
{
/* Assume stdin is non-empty, seekable, and starts with '#!/bin/sh'
iff argc > 1. */
ASSERT (ch == '#');
ASSERT (ungetc (ch, stdin) == ch);
ASSERT (fseeko (stdin, 2, SEEK_SET) == 0);
- /* Test that fseek discards random ungetc data. */
ch = fgetc (stdin);
ASSERT (ch == '/');
- ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
+ if (2 < argc)
+ {
+ if (FUNC_UNGETC_BROKEN)
+ {
+ fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
+ stderr);
+ return 77;
+ }
+ /* Test that fseek discards random ungetc data. */
+ ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
+ }
ASSERT (fseeko (stdin, 0, SEEK_END) == 0);
ASSERT (fgetc (stdin) == EOF);
/* Test that fseek resets end-of-file marker. */