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ft_substr.c
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ft_substr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_substr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: gusgonza <gusgonza@student.42barcel> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/02/04 17:34:42 by gusgonza #+# #+# */
/* Updated: 2024/02/12 13:17:59 by gusgonza ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_substr(char const *s, unsigned int start, size_t len)
{
char *ptr;
size_t pos;
size_t len_s;
pos = 0;
if (!s)
return (NULL);
len_s = ft_strlen(s);
if (start <= len_s)
{
if (len > len_s - start)
len = len_s - start;
ptr = (char *)ft_calloc((len + 1), sizeof(char));
if (!ptr)
return (NULL);
while (pos < len && s[start + pos] != '\0')
{
ptr[pos] = s[start + pos];
pos++;
}
}
else
return (ft_calloc(1, sizeof(char)));
return (ptr);
}
/*//For testing
int main (void)
{
char s1[] = "Hello/people/of/Tomorrowland";
printf("My ft_ -> %s\n", ft_substr(s1, 0, 4));
return (0);
}*/