minishell
ft_memchr.c
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1 /* ************************************************************************** */
2 /* */
3 /* ::: :::::::: */
4 /* ft_memchr.c :+: :+: :+: */
5 /* +:+ +:+ +:+ */
6 /* By: kfujita <kfujita@student.42tokyo.jp> +#+ +:+ +#+ */
7 /* +#+#+#+#+#+ +#+ */
8 /* Created: 2022/04/10 16:51:02 by kfujita #+# #+# */
9 /* Updated: 2022/04/25 23:41:47 by kfujita ### ########.fr */
10 /* */
11 /* ************************************************************************** */
12 
13 #include <stddef.h>
14 #include "ft_mem.h"
15 
16 void *ft_memchr(const void *s, int c, size_t n)
17 {
18  unsigned char *p_s;
19  unsigned char looking_for;
20 
21  if (n == 0)
22  return (NULL);
23  p_s = (unsigned char *)s;
24  looking_for = (unsigned char)c;
25  while (--n > 0 && *p_s != looking_for)
26  p_s++;
27  if (*p_s == looking_for)
28  return (p_s);
29  else
30  return (NULL);
31 }
ft_mem.h
ft_memchr
void * ft_memchr(const void *s, int c, size_t n)
Definition: ft_memchr.c:16