hw2 done

include/string.h

@@ -3,5 +3,8 @@
 #include <stddef.h>
 
 int strcmp(const char *lhs, const char *rhs);
+char *strcpy(char *destination, const char *source);
+size_t strlen(const char *str);
+
 void *memcpy(void *dest, const void *src, size_t count);
 void *memzero(void *start, void *end);