Help with a C++ calculator

[retrohunter95]

I'm trying to make a calculator in C++, for some reason the code works, but it doesn't seem to detect the Switch statement. I'm using the console, this is the code (BTW it's in Spanish).

#include <iostream>

using namespace std;

int menu;
int num1, num2;
int resultado;

int main()
{
cout << "Bienvenido a la calculadora \n" << endl;
cout << "Seleccione la operacion deseada con el numero indicado \n" << endl;
cout << "1. Suma" << endl;
cout << "2. Resta" << endl;
cout << "3. Multiplicacion" << endl;
cout << "4. Division" << endl;

switch(menu)
{
case '1':
resultado = num1+num2;
cout << "Introduzca el primer numero" << endl;
cin >> num1;
cout << "Introduzca el segundo numero" << endl;
cin >> num2;
cout << "El resultado es: " + resultado << endl;

}
case '2':
{
resultado = num1-num2;
cout << "Introduzca el primer numero" << endl;
cin >> num1;
cout << "Introduzca el segundo numero" << endl;
cin >> num2;
cout << "El resultado es: " + resultado << endl;
}
case '3':
{
resultado = num1*num2;
cout << "Introduzca el primer numero" << endl;
cin >> num1;
cout << "Introduzca el segundo numero" << endl;
cin >> num2;
cout << "El resultado es: " + resultado << endl;
}
case '4':
{
resultado = num1*num2;
cout << "Introduzca el primer numero" << endl;
cin >> num1;
cout << "Introduzca el segundo numero" << endl;
cin >> num2;
cout << "El resultado es: " + resultado << endl;
}
break;
}
cin.get();
return 0;
}

[Dy7SLyTq]

well it actually does detect it, but you are a)not giving menu a value to be tested against the switch and b)testing it against char values

[retrohunter95]

Could you explain a bit more?.

[jwkNwA7f]

You are not getting the input from the user to menu.
Before the switch add cin >> menu;

Also ,' ' is used for chars. Just use: case 1:

Hope this helped!

[3qX21hU5]

You never assign anything to int menu;. You don't take user input or give a hardcoded value to it, so it is holding a random number inside of it (Whatever was used last in that memory spot) when it reaches the switch statement.

After all your cout statements include a cin statement that assigns whatever the user inputs to the variable menu. Also remove all the ' marks around your cases. They are saying you want to test a char whereas your menu variable is of type integer.

Also please use codetags when you post your code. It was provided for you even when you created the new thread.

[retrohunter95]

It's working perfectly now :D. Thanks!.