43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_strnstr.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 13:58:10 by hulamy #+# #+# */
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/* Updated: 2019/11/25 13:58:11 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** locate the first occurence of the string little in len first characters
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** of big and return a pointer to this occurence if found
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*/
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#include "libft.h"
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char *ft_strnstr(const char *big, const char *little, size_t len)
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{
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size_t i;
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size_t j;
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j = 0;
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i = 0;
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if (!ft_strlen(little))
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return ((char *)big);
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while (i == 0 && j <= len)
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{
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while (little[i] == big[j + i] && little[i] && j + i <= len)
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i++;
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if (little[i])
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{
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j++;
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if (!big[j] || j >= len)
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return (0);
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i = 0;
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}
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}
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return ((char *)big + j);
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}
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