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/* Test of vasnprintf() and asnprintf() functions.
Copyright (C) 2007-2008 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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include "vasnprintf.h"
#include <stdarg.h>
#include <stdio.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)
static char *
my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
{
va_list args;
char *ret;
va_start (args, format);
ret = vasnprintf (resultbuf, lengthp, format, args);
va_end (args);
return ret;
}
static void
test_vasnprintf ()
{
char buf[8];
int size;
for (size = 0; size <= 8; size++)
{
size_t length = size;
char *result = my_asnprintf (NULL, &length, "%d", 12345);
ASSERT (result != NULL);
ASSERT (strcmp (result, "12345") == 0);
ASSERT (length == 5);
free (result);
}
for (size = 0; size <= 8; size++)
{
size_t length;
char *result;
memcpy (buf, "DEADBEEF", 8);
length = size;
result = my_asnprintf (buf, &length, "%d", 12345);
ASSERT (result != NULL);
ASSERT (strcmp (result, "12345") == 0);
ASSERT (length == 5);
if (size < 6)
ASSERT (result != buf);
ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
if (result != buf)
free (result);
}
}
static void
test_asnprintf ()
{
char buf[8];
int size;
for (size = 0; size <= 8; size++)
{
size_t length = size;
char *result = asnprintf (NULL, &length, "%d", 12345);
ASSERT (result != NULL);
ASSERT (strcmp (result, "12345") == 0);
ASSERT (length == 5);
free (result);
}
for (size = 0; size <= 8; size++)
{
size_t length;
char *result;
memcpy (buf, "DEADBEEF", 8);
length = size;
result = asnprintf (buf, &length, "%d", 12345);
ASSERT (result != NULL);
ASSERT (strcmp (result, "12345") == 0);
ASSERT (length == 5);
if (size < 6)
ASSERT (result != buf);
ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
if (result != buf)
free (result);
}
}
int
main (int argc, char *argv[])
{
test_vasnprintf ();
test_asnprintf ();
return 0;
}
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