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Jogofus
Asked: 2020-06-07 15:41:00 +0800 CST 2020-06-07 15:41:00 +0800 CST

Difference between different return types

  • 772

What is the difference between adding a return -1 and a return 1 to any function of type int? Reading the code of a program that was circulating on a forum, in some functions it used return -1 and in others it used return 1.

c++

1 Answers

  1. Best Answer

    Short answer: It's up to you.

    Long Answer:

    It depends on you, it can make a lot of difference. the return of a function is a message that is sent from the called function to the function that invoked it and there are not only the values ​​-1 0 and 1 when you talk about an int function, keep in mind that the values ​​of int range from -2,147,483,648 to 2,147,483,647. so why limit yourself to -1 to 0 to 1. Well partly because they are simple numbers but in programming you are the programmer and you have the power .

    So for example you can do a sum function;

    suma = funcion_suma(5, 2);
.
. 
.
int funcion_suma(int x, int y){
    return x + y;
}

    and there you see how important the return is...

    Or you can manage your own secret code

    //si retorna 0 es porque el usuario quiere papas fritas 
//si retorna 1 quiere papas mas refresco
// si retorna 2 quiere helado de vainilla
// si retorna 52 quiere la cajita feliz
// si retorna -2 es porque no se decide
// si retorna -2000 se gano el premio

    However, if you are not interested at all, if you don't capture that value and start asking yourself those kinds of questions, I recommend that you do the void function and then you won't have those existential dilemmas

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