GEEKING

App/include/util/FixedArray.h

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+/* Copyright 2003-2005 ROBLOX Corporation, All Rights Reserved */
+
+#pragma once
+
+#include "boost/array.hpp"
+#include "rbx/Debug.h"
+
+namespace RBX {
+
+/* USAGE
+
+*/
+    template<class T, std::size_t N>
+    class FixedArray 
+	{
+	private:
+		boost::array<T, N> data;
+		size_t num;
+
+	public:
+		FixedArray()
+			: num(0)
+		{}
+
+		void push_back(const T& x) {
+			RBXASSERT_VERY_FAST(num < N);
+			data[num] = x;
+			++num;
+		}
+
+		void fastRemove(size_t i) {
+			RBXASSERT_VERY_FAST(i < num);
+			RBXASSERT_VERY_FAST(num <= N);
+			data[i] = data[num - 1];
+			--num;
+		}
+
+		void replace(size_t i, const T& x) {
+			RBXASSERT_VERY_FAST(i < num);
+			RBXASSERT_VERY_FAST(num <= N);
+			data[i] = x;
+		}
+
+		void fastClear() {
+			num = 0;
+		}
+
+		T operator[](size_t i) {
+			RBXASSERT_VERY_FAST(i < num);
+			return data[i];
+		}
+
+		const T operator[](size_t i) const {
+			RBXASSERT_VERY_FAST(i < num);
+			return data[i];
+		}
+
+		size_t size() const {
+		   return num;
+		}
+        
+        size_t capacity() const
+        {
+            return N;
+        }
+	};
+
+}// namespace
+
+
+