added: 2-strlen.c

Author: hackerSa3edy

0x05-pointers_arrays_strings/2-main.c

@@ -0,0 +1,18 @@
+#include "main.h"
+#include <stdio.h>
+
+/**
+ * main - check the code
+ *
+ * Return: Always 0.
+ */
+int main(void)
+{
+	char *str;
+	int len;
+
+	str = "My first strlen!";
+	len = _strlen(str);
+	printf("%d\n", len);
+	return (0);
+}

0x05-pointers_arrays_strings/2-strlen.c

@@ -0,0 +1,22 @@
+#include "main.h"
+
+/**
+ * _strlen - return the length of a string.
+ *
+ * @s: string.
+ *
+ * Return: length of the string.
+ */
+int _strlen(char *s)
+{
+	char *ptr;
+	int size = 0;
+
+	ptr = s;
+	while (*ptr != '\0')
+	{
+		size = sizeof(*ptr) + size;
+		ptr = ptr + 1;
+	}
+	return (size);
+}

0x05-pointers_arrays_strings/main.h

@@ -1,3 +1,4 @@
 int _putchar(char);
 void reset_to_98(int *);
 void swap_int(int *, int *);
+int _strlen(char *);