improved Array: use std::vector

Planner/Array.h

@@ -3,42 +3,35 @@
 #include <stdio.h>  
 #include <stdlib.h>  
 #include <string.h> 
+#include <vector>
 
 template <class T>
 class Array {
-protected:
-	long length;
-	T** elements;
+private:
+	std::vector<T*> elements;
+
 public:
-	Array() {
-		length = 0;
-		elements = NULL;
-	}
+	Array() { }
+
 	virtual ~Array() {
-		if (elements != NULL) {
-			for (long i = 0; i < length; ++i)
-				delete elements[i];
-			delete[] elements;
-		}
+		for (auto& elem : elements)
+			delete elem;
+		elements.clear();
 	}
+
 	void add(T* new_line) {
-		T** buf = new T * [length + 1];
-		for (long i = 0; i < length; ++i) {
-			buf[i] = elements[i];
-		}
-		buf[length] = new_line;
-		length++;
-		delete[] elements;
-		elements = buf;
-		buf = NULL;
+		elements.push_back(new_line);
 	}
-	long getLength() {
-		return length;
+
+	long getLength() const {
+		return elements.size();
 	}
+
 	T* get(long i) {
 		return elements[i];
 	}
-	T** getElements() {
+
+	const std::vector<T*>& getElements() const {
 		return elements;
 	}
 };