/* Test of vsnprintf() 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 <stdio.h>
+#include "signature.h"
+SIGNATURE_CHECK (vsnprintf, int, (char *, size_t, char const *, va_list));
+
#include <stdarg.h>
-#include <stdlib.h>
#include <string.h>
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
+#include "macros.h"
static int
my_snprintf (char *buf, int size, const char *format, ...)
int size;
int retval;
+ retval = my_snprintf (NULL, 0, "%d", 12345);
+ ASSERT (retval == 5);
+
for (size = 0; size <= 8; size++)
{
memcpy (buf, "DEADBEEF", 8);
retval = my_snprintf (buf, size, "%d", 12345);
+ ASSERT (retval == 5);
if (size < 6)
- {
-#if CHECK_VSNPRINTF_POSIX
- ASSERT (retval < 0 || retval >= size);
-#endif
- if (size > 0)
- {
- ASSERT (memcmp (buf, "12345", size - 1) == 0);
- ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
- }
+ {
+ if (size > 0)
+ {
+ ASSERT (memcmp (buf, "12345", size - 1) == 0);
+ ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
+ }
#if !CHECK_VSNPRINTF_POSIX
- if (size > 0)
+ if (size > 0)
#endif
- ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
- }
+ ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+ }
else
- {
- ASSERT (retval == 5);
- ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
- }
+ {
+ ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
+ }
}
+ /* Test the support of the POSIX/XSI format strings with positions. */
+ {
+ char result[100];
+ retval = my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
+ ASSERT (strcmp (result, "55 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
return 0;
}