Cub3D/libft/memory/ft_memchr.c
2024-10-31 18:17:43 +01:00

39 lines
1.4 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_memchr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/07 16:48:30 by rparodi #+# #+# */
/* Updated: 2024/10/31 17:59:07 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
/**
* @brief Scans memory for a byte
*
* @param s Pointer to the memory area to scan
* @param c Byte value to search for
* @param n Number of bytes to scan in s
*
* @return A pointer to the matching byte in memory, or NULL if the byte
is not found within the first n bytes
*/
void *ft_memchr(const void *s, int c, size_t n)
{
size_t i;
char *str;
i = 0;
str = (char *)s;
while (i < n)
{
if ((char)c == str[i])
return ((void *)str + i);
i++;
}
return (NULL);
}