Possible statements

[gobblewobble123]

So, I can use "while" and "if" statements. But I would like to know if there is such a thing as a "when" statement. So, if you choose to reply to this inquiry of mine, please apprise me as to whether "when" statements are real and if they are, show me an example in a source code. I don't want this to be to complicated. Just an example of a couple lines that would precede the statement, the statement its self, and a couple lines that would follow the statement). And if you like, would you just give me some statements that might be useful in the future?

Thanks for your help guys. Happy commenting!

[amaac]

There is no such thing as a when statement but the while statements should perform the same actions with a little bit of code manipulation.

if the when statement existed it might look like this

//do-other-stuff
when (exit = 1)
{
//do-stuff
}

since we only have while statements then we use what we got.

while (exit !=1)
{
//do-other-stuff
}

//do-stuff 

[gobblewobble123]

Thanks!

[Intrexa]

If I might add to what amaac said: In the case you are thinking of something like

//doing stuff
when (exit == 1)
{
//do the exit stuff
}
//other stuff



//something that makes exit == 1; statements inside the when bracket execute 

You would need to do a little more work to create that scenario. The simpliest way is to test for exit == 1 after every time it might change, then execute a function if it did. This will work for most small programs, for larger programs there are multiple ways to handle this, such as registering it as an event or having a command queue.

[rocketboy9000]

Or, use an exception, or a function, or a goto.

[Disch]

I'm confused.

How is "when" different from "if"?

[rocketboy9000]

It's like an event callback.