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ft_substr.c
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ft_substr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_substr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jburlama <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/10/07 18:52:00 by jburlama #+# #+# */
/* Updated: 2023/10/08 18:10:04 by jburlama ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_substr(char const *s, unsigned int start, size_t len)
{
size_t i;
size_t j;
size_t s_len;
char *str;
i = (size_t)start;
j = 0;
s_len = ft_strlen(s);
if (start >= s_len)
return (ft_strdup(""));
while (s[i] != '\0' && j < len)
{
i++;
j++;
}
str = ft_calloc(sizeof(char), j + 1);
if (str == NULL)
return (NULL);
str[j--] = '\0';
i--;
while (j + 1 > 0)
str[j--] = s[i--];
return (str);
}