From d2422da2c1b2fcf75a3212eb36e94a718a39c0a5 Mon Sep 17 00:00:00 2001
From: Angeld55 <achi_d@abv.bg>
Date: Fri, 20 Sep 2019 16:02:36 +0300
Subject: Add files via upload

---
 Polymorphism/MathExpression/Operation.hpp | 46 +++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Polymorphism/MathExpression/Operation.hpp

(limited to 'Polymorphism/MathExpression/Operation.hpp')

diff --git a/Polymorphism/MathExpression/Operation.hpp b/Polymorphism/MathExpression/Operation.hpp
new file mode 100644
index 0000000..cfa9534
--- /dev/null
+++ b/Polymorphism/MathExpression/Operation.hpp
@@ -0,0 +1,46 @@
+class Operation : public Expression
+{
+
+public:
+	Expression* left;
+	char op;
+	Expression* right;
+	Operation(Expression* left, char ch, Expression* right)
+	{
+
+		this->left = left;
+		op = ch;
+		this->right = right;
+		type = 2;
+
+	}
+	void Print()
+	{
+		std::cout << '(';
+		left->Print();
+		std::cout << op;
+		right->Print();
+		std::cout << ')';
+	}
+	int Evaluate()
+	{
+		int result = left->Evaluate();
+		int value2 = right->Evaluate();
+
+		if (op == '+')
+			result += value2;
+		else if (op == '*')
+			result *= value2;
+		else
+			return 0; //Invalid operation
+		return result;
+	}
+	~Operation()
+	{
+
+		delete left;
+		delete right;
+		op = '\0';
+	}
+
+};
\ No newline at end of file
-- 
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