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-rw-r--r--ft_strnstr.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/ft_strnstr.c b/ft_strnstr.c
new file mode 100644
index 0000000..b91d162
--- /dev/null
+++ b/ft_strnstr.c
@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/* */
+/* ::: :::::::: */
+/* ft_strnstr.c :+: :+: :+: */
+/* +:+ +:+ +:+ */
+/* By: dkaiser <dkaiser@student.42heilbronn.de +#+ +:+ +#+ */
+/* +#+#+#+#+#+ +#+ */
+/* Created: 2024/03/06 16:07:54 by dkaiser #+# #+# */
+/* Updated: 2024/03/06 16:24:52 by dkaiser ### ########.fr */
+/* */
+/* ************************************************************************** */
+
+#include <string.h>
+
+char *ft_strnstr(const char *haystack, const char *needle, size_t len)
+{
+ size_t i;
+ size_t k;
+
+ i = 0;
+ while (i < len)
+ {
+ k = 0;
+ while (haystack[i + k] == needle[k])
+ {
+ k++;
+ }
+ if (!needle[k])
+ return ((char *)haystack + i);
+ i++;
+ }
+ return (0);
+}
+
+/* #include <stdio.h> */
+/* int main() { */
+/* char haystack[] = "Hello world"; */
+/* char needle[] = "d"; */
+/* printf("strnstr: %s\n", strnstr(haystack, needle, 10)); */
+/* printf("ft_strnstr: %s\n", ft_strnstr(haystack, needle, 10)); */
+/* } */