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#include "../libft.h"
#include "test_utils.h"
static void
_s_ft_strdup_null (void)
{
_s_sink = (size_t)ft_strdup (NULL);
}
static void
_s_libc_strdup_null (void)
{
_s_sink = (size_t)strdup (NULL);
}
/* ======================================
* calloc
* ====================================== */
static void
_s_test_calloc (void)
{
int i;
char label[64];
printf ("-- calloc --\n");
/* zeroed memory */
{
char *ft_p = ft_calloc (100, 1);
char *libc_p = calloc (100, 1);
_s_check ("zeroed", ft_p && libc_p && memcmp (ft_p, libc_p, 100) == 0);
free (ft_p);
free (libc_p);
}
/* nmemb=0 */
{
void *p = ft_calloc (0, 10);
_s_check ("nmemb=0 not NULL", p != NULL);
free (p);
}
/* size=0 */
{
void *p = ft_calloc (10, 0);
_s_check ("size=0 not NULL", p != NULL);
free (p);
}
/* overflow protection */
{
void *p = ft_calloc ((size_t)-1, 2);
_s_check ("overflow returns NULL", p == NULL);
}
/* single byte */
{
unsigned char *p = ft_calloc (1, 1);
_s_check ("single byte zeroed", p && *p == 0);
free (p);
}
/* randomized: check all bytes are zero */
srand (time (NULL));
for (i = 0; i < 50; i++)
{
size_t nmemb = rand () % 500 + 1;
size_t size = rand () % 50 + 1;
unsigned char *ft_p = ft_calloc (nmemb, size);
unsigned char *libc_p = calloc (nmemb, size);
int ok = 1;
size_t j;
if (!ft_p || !libc_p)
{
ok = 0;
}
else
{
for (j = 0; j < nmemb * size; j++)
{
if (ft_p[j] != 0)
{
ok = 0;
break;
}
}
}
snprintf (label, sizeof (label), "random nmemb=%zu size=%zu", nmemb,
size);
_s_check (label, ok);
free (ft_p);
free (libc_p);
}
}
/* ======================================
* strdup
* ====================================== */
static void
_s_test_strdup (void)
{
int i;
char label[64];
printf ("-- strdup --\n");
/* NULL */
_s_check_both_crash ("strdup NULL", _s_ft_strdup_null, _s_libc_strdup_null);
/* empty string */
{
char *p = ft_strdup ("");
_s_check ("empty", p && strcmp (p, "") == 0);
free (p);
}
/* returns independent copy */
{
char src[] = "hello";
char *p = ft_strdup (src);
_s_check ("independent copy", p && p != src && strcmp (p, src) == 0);
src[0] = 'X';
_s_check ("mutation safe", p[0] == 'h');
free (p);
}
/* randomized */
for (i = 0; i < 50; i++)
{
int len = rand () % 500 + 1;
char *src = malloc (len + 1);
int j;
char *ft_p;
char *libc_p;
if (!src)
continue;
for (j = 0; j < len; j++)
src[j] = 'A' + rand () % 26;
src[len] = '\0';
ft_p = ft_strdup (src);
libc_p = strdup (src);
snprintf (label, sizeof (label), "random len=%d", len);
_s_check (label, ft_p && libc_p && strcmp (ft_p, libc_p) == 0);
free (src);
free (ft_p);
free (libc_p);
}
}
int
main (void)
{
printf ("=== alloc functions ===\n");
_s_test_calloc ();
_s_test_strdup ();
_s_print_results ();
return (_s_fail != 0);
}
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