52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_memchr.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 13:55:51 by hulamy #+# #+# */
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/* Updated: 2019/12/12 21:50:32 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** locate character in string and return its position
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*/
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/*
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** #include <libc.h>
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**
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** void *ft_memchr(const void *s, int c, size_t n);
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**
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** int main(void)
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** {
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** const char *str;
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**
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** char *pouet = "z";
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** char *lolzer = (char *)&pouet[2];
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** lolzer = "aaaaaaaaaa";
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** str = ft_memchr(pouet, 'a', 50);
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** if (!str)
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** printf("NULL");
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** else
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** printf("%s\n", str);
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** return (0);
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** }
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*/
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#include "libft.h"
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void *ft_memchr(const void *s, int c, size_t n)
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{
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unsigned char *sbis;
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size_t i;
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sbis = (unsigned char *)s;
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i = -1;
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while (++i < n)
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if (sbis[i] == (unsigned char)c)
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return ((void *)sbis + i);
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return (NULL);
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}
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