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ft_substr.c
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ft_substr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_substr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mrios-es <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/09/13 19:05:12 by mrios-es #+# #+# */
/* Updated: 2023/09/13 19:05:12 by mrios-es ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int min(int a, int b)
{
if (a < b)
return (a);
return (b);
}
char *ft_substr(char const *s, unsigned int start, size_t len)
{
char *substr;
size_t str_len;
int substr_len;
int i;
str_len = ft_strlen(s);
if (start >= str_len)
return (ft_calloc(1, sizeof(char)));
if (len > str_len)
len = str_len;
substr_len = min(start + len, str_len) - start;
substr = ft_calloc(substr_len + 1, sizeof(char));
if (!substr)
return (NULL);
i = 0;
while (i < substr_len)
{
substr[i] = s[i + start];
i++;
}
return (substr);
}