Files
42_INT_01_libft/srcs/ft_strncmp.c
2020-02-10 10:25:04 +01:00

33 lines
1.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strncmp.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/11/25 13:57:59 by hulamy #+# #+# */
/* Updated: 2019/11/25 13:58:00 by hulamy ### ########.fr */
/* */
/* ************************************************************************** */
/*
** compare size first character of two null terminated strings
** and return value of difference between first two different character
*/
#include "libft.h"
int ft_strncmp(const char *s1, const char *s2, size_t n)
{
size_t i;
int res;
i = 0;
res = 0;
while (s1[i] && s1[i] == s2[i] && i < n - 1)
i++;
if (n != 0)
res = (unsigned char)s1[i] - (unsigned char)s2[i];
return (res);
}