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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';
}
};
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