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ft_strstr.c
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ft_strstr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: vopolonc <vopolonc@student.unit.ua> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/11/05 11:07:53 by vopolonc #+# #+# */
/* Updated: 2018/11/20 16:29:16 by vopolonc ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strstr(const char *haystack, const char *needle)
{
int i;
int j;
int k;
i = 0;
if (needle[0] == '\0')
return ((char*)haystack);
while (haystack[i])
{
j = 0;
if (haystack[i] == needle[j])
{
k = i;
while (haystack[k] == needle[j] && haystack[k])
{
k++;
j++;
}
if (!needle[j])
return ((char*)&haystack[i]);
}
i++;
}
return (NULL);
}