Removed unnecessary casts.

main.c

@@ -88,7 +88,7 @@ void* malloc(size_t size)
 		freeList = b;
 	}
 
-	return (struct block*)b + 1;
+	return b + 1;
 }
 
 /// Will flag the provided memory as free and will defragment other blocks adjacent to it.
@@ -100,7 +100,7 @@ void free(void* ptr)
 	if (!ptr)
 		return;
 
-	struct block* b = (struct block*)ptr - 1;
+	struct block* b = ptr - 1;
 	b->free = 1;
 
 	struct block* link = b->next;