-
Notifications
You must be signed in to change notification settings - Fork 0
/
ft_memcmp.c
35 lines (32 loc) · 1.43 KB
/
ft_memcmp.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_memcmp.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lgasc <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/02/04 12:57:22 by lgasc #+# #+# */
/* Updated: 2023/02/21 18:14:47 by lgasc ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
/** @remark This function aims to replicate the `libc` function `memcmp`.
* @remark The behavior of this function is, when called with
* at least one `NULL` pointer, undefined!
*/
int ft_memcmp(const void *string1, const void *string2, size_t n)
{
unsigned int i;
if (n == 0)
return (0);
i = 0;
while (i < n)
{
if (((const unsigned char *const) string1)[i]
!= ((const unsigned char *const) string2)[i])
return (((const unsigned char *const) string1)[i]
- ((const unsigned char *const) string2)[i]);
i++;
}
return (0);
}