Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

c# recursive function not all code paths return a value

I trying to make recursive function but I get this error: not all code paths return a value I know why I get this error its because the if not returning something but I don't want it to return something... How to bypass this error? (It should really be just warning)

    private double calculate(double money, int months)
    {
        months--;
        if (months != 0)
            calculate(profit * 0.3, months);
        else
            return profit;
    }

Edit: I call it like that when user click the button

    private void bCalculate_Click(object sender, EventArgs e)
    {
        profit = double.Parse(tbMoney.Text);
        months = int.Parse(tbMonth.Text);
        tbPpofit.Text = calculate(profit,months+1).ToString();
    }

If I write return like you say it will not give the result that i need

like image 721
a1204773 Avatar asked Dec 15 '12 16:12

a1204773


People also ask

What C is used for?

C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...

What is the full name of C?

In the real sense it has no meaning or full form. It was developed by Dennis Ritchie and Ken Thompson at AT&T bell Lab. First, they used to call it as B language then later they made some improvement into it and renamed it as C and its superscript as C++ which was invented by Dr. Stroustroupe.

Is C language easy?

C is a general-purpose language that most programmers learn before moving on to more complex languages. From Unix and Windows to Tic Tac Toe and Photoshop, several of the most commonly used applications today have been built on C. It is easy to learn because: A simple syntax with only 32 keywords.

Is C programming hard?

C is more difficult to learn than JavaScript, but it's a valuable skill to have because most programming languages are actually implemented in C. This is because C is a “machine-level” language. So learning it will teach you how a computer works and will actually make learning new languages in the future easier.


2 Answers

Simply add a return to the recursive branch:

  if (months != 0)
        return calculate(profit * 0.3, months);
  ...
like image 187
Henk Holterman Avatar answered Sep 30 '22 15:09

Henk Holterman


Add a return value to your code for recursion:

  if (months != 0)
        return calculate(profit * 0.3, months);
like image 21
Soner Gönül Avatar answered Sep 30 '22 13:09

Soner Gönül