#include "freading.h"
+#include <stdio.h>
#include <stdlib.h>
-#define ASSERT(expr) if (!(expr)) abort ();
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ abort (); \
+ } \
+ } \
+ while (0)
#define TESTFILE "t-freading.tmp"
ASSERT (!freading (fp));
if (fseek (fp, 0, SEEK_END))
goto skip;
- ASSERT (!freading (fp));
+ /* freading (fp) is undefined here, because on some implementations (e.g.
+ glibc) fseek causes a buffer to be read.
+ fwriting (fp) is undefined as well. */
if (fclose (fp))
goto skip;
ASSERT (!freading (fp));
if (fseek (fp, 0, SEEK_END))
goto skip;
- ASSERT (!freading (fp));
+ /* freading (fp) is undefined here, because on some implementations (e.g.
+ glibc) fseek causes a buffer to be read.
+ fwriting (fp) is undefined as well. */
if (fclose (fp))
goto skip;