Initial community commit

Src/pfc/mem_block.h

@@ -0,0 +1,55 @@
+#ifndef _PFC_MEM_BLOCK_H_
+#define _PFC_MEM_BLOCK_H_
+
+class mem_block
+{
+private:
+	void * data;
+	int size;
+public:
+	mem_block() {data=0;size=0;}
+	~mem_block() {if (data) free(data);}
+
+	int get_size() const {return size;}
+
+	void * get_ptr() const {return data;}
+
+	void * set_size(int new_size)
+	{
+		if (data==0) data = malloc(size = new_size);
+		else if (size!=new_size)
+		{
+			void * new_data = realloc(data,new_size);
+			if (!new_data) return 0;
+			data = new_data;
+			size = new_size;
+		}
+		return data;
+	}
+
+	void * check_size(int new_size)
+	{
+		if (size<new_size) return set_size(new_size);
+		else return data;
+	}
+
+	operator void * () const {return data;}
+
+};
+
+template<class T>
+class mem_block_t : private mem_block
+{
+public:
+	int get_size() const {return mem_block::get_size()/sizeof(T);}
+
+	T* get_ptr() const {return static_cast<T*>(mem_block::get_ptr());}
+
+	T* set_size(int new_size) {return static_cast<T*>(mem_block::set_size(new_size*sizeof(T)));}
+
+	T* check_size(int new_size) {return static_cast<T*>(mem_block::check_size(new_size*sizeof(T)));}
+
+	operator T * () const {return get_ptr();}
+};
+
+#endif