Add Initial commit for further testing

CM2005 Object Oriented Programming/Topic 4/4.5.8/OrderBookEntry.h

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+#pragma once
+
+#include <string>
+
+enum class OrderBookType{bid, ask, unknown, sale};
+
+class OrderBookEntry
+{
+    public:
+
+        OrderBookEntry( double _price, 
+                        double _amount, 
+                        std::string _timestamp, 
+                        std::string _product, 
+                        OrderBookType _orderType);
+
+        static OrderBookType stringToOrderBookType(std::string s);
+        static bool compareByTimestamp(OrderBookEntry& entry1, OrderBookEntry& entry2)
+        {
+            return entry1.timestamp < entry2.timestamp;
+        }
+        static bool compareByPriceAsc (OrderBookEntry& entry1, OrderBookEntry& entry2)
+        {
+            return entry1.timestamp < entry2.timestamp;
+        }
+        static bool compareByPriceDesc (OrderBookEntry& entry1, OrderBookEntry& entry2)
+        {
+            return entry1.timestamp > entry2.timestamp;
+        }
+
+        double price;
+        double amount;
+        std::string timestamp;
+        std::string product;
+        OrderBookType orderType;
+};
+