github-tutorial/calculator.cpp at main · Ng0710/github-tutorial · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
#include <iostream>

using namespace std;

int main() {
    char operation;
    double num1, num2, result;

    cout << "Simple Calculator" << endl;
    cout << "Enter an operation (+, -, *, /): ";
    cin >> operation;

    cout << "Enter the first number: ";
    cin >> num1;

    cout << "Enter the second number: ";
    cin >> num2;

    switch (operation) {
        case '+':
            result = num1 + num2;
            cout << "Result: " << result << endl;
            break;
        case '-':
            result = num1 - num2;
            cout << "Result: " << result << endl;
            break;
        case '*':
            result = num1 * num2;
            cout << "Result: " << result << endl;
            break;
        case '/':
	    if (num2 ==0){
		cerr << "Error: Division by 0!" << endl;
		exit(1);
		}
            result = num1 / num2;  // No check for dividing by 0
            cout << "Result: " << result << endl;
            break;
        default:
            cout << "Invalid operation!" << endl;
            break;
    }

    return 0;
}