ft_strnstr.c File Reference

#include <stddef.h>

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Functions
char *	ft_strnstr (const char *haystack, const char *needle, size_t len)

Function Documentation

ft_strnstr()

char* ft_strnstr	(	const char *	haystack,
		const char *	needle,
		size_t	len
	)

Definition at line 15 of file ft_strnstr.c.

{
    size_t  pos;
 
    if (*needle == '\0')
        return ((char *)haystack);
    while (len > 0 && *haystack != '\0')
    {
        if (*haystack == *needle)
        {
            pos = 0;
            while (needle[pos] != '\0'
                && len > pos && haystack[pos] == needle[pos])
                pos++;
            if (needle[pos] == '\0')
                return ((char *)haystack);
        }
        haystack++;
        len--;
    }
    return (NULL);
}