ft_memcmp.c
1 /* ************************************************************************** */ 2 /* */ 3 /* ::: :::::::: */ 4 /* ft_memcmp.c :+: :+: :+: */ 5 /* +:+ +:+ +:+ */ 6 /* By: ll-hotel <ll-hotel@student.42lyon.fr> +#+ +:+ +#+ */ 7 /* +#+#+#+#+#+ +#+ */ 8 /* Created: 2023/11/07 15:52:30 by ll-hotel #+# #+# */ 9 /* Updated: 2023/11/09 13:40:04 by ll-hotel ### ########.fr */ 10 /* */ 11 /* ************************************************************************** */ 12 13 #include <stddef.h> 14 15 int ft_memcmp(const void *s1, const void *s2, unsigned long long n) 16 { 17 unsigned long long i; 18 const unsigned char *p1 = (unsigned char *)s1; 19 const unsigned char *p2 = (unsigned char *)s2; 20 21 i = 0; 22 while (i < n && p1[i] == p2[i]) 23 i++; 24 if (i < n) 25 return (p1[i] - p2[i]); 26 return (0); 27 }