std library function almost done, tested with libft-unit-tests

1 files changed, 27 insertions, 0 deletions

diff --git a/ft_strstr.c b/ft_strstr.c
new file mode 100644
index 0000000..0209de4
--- /dev/null
+++ b/ft_strstr.c
@@ -0,0 +1,27 @@
+#include <stdlib.h>
+#include <string.h>
+#include "libft.h"
+
+char *ft_strstr(const char *haystack, const char *needle)
+{
+	size_t  i;
+    char    *cursor;
+
+    cursor = (char*)haystack;
+	if (!ft_strlen(needle))
+		return (cursor);
+	while (*cursor)
+	{
+		i = 0;
+		while (needle[i] && cursor[i])
+		{
+			if (needle[i] != cursor[i])
+				break ;
+			i++;
+		}
+		if (i == ft_strlen(needle))
+			return (cursor);
+		cursor++;
+	}
+	return (NULL);
+}