"Prototype" of functions

[Ratinho]

What is it you are trying to achieve?
I want to call 2 functions: one from each other


What is the problem you are having?
The compiler doesnt "know" the function if it defined lower then the place i try to call it, and i cant defined two function mixed:S
its like one of the reason for function`s prototype in c/c/++


Describe what you have tried to solve this problem
i tried export and things like that...


Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)
Plz dont suggest me other solutions...im trying to build compiler, and i need that to implement my grammer...

Turing:

function term () : boolean     var retVal : boolean     retVal := false     put : outF, "<term>"     if (integerConstant () or stringConstant () or keywordConstant ()) then         nextTok ()     elsif (varName ()) then         nextTok ()         if (cur_tok = '[') then             nextTok ()             if (expression ()) then                 nextTok ()                 if (cur_tok = ']') then                     nextTok ()                     retVal := true                 end if             end if         end if     elsif (subroutineCall ()) then         retVal := true     elsif (cur_tok = '(') then         nextTok ()         if (expression ()) then             nextTok ()             if (cur_tok = ')') then                 nextTok ()                 retVal := true             end if         end if     elsif (unaryOp ()) then         nextTok ()         if (term ()) then             nextTok ()             retVal := true         end if     else         retVal := false     end if     put : outF, "</term>"     result retVal end term function expression () : boolean     put : outF, "<expression>"     if ( ~term ()) then         result false     end if     loop         exit when ( ~ (op () and term ()))     end loop     put : outF, "</expression>"     result true end expression

Notice to the relationship between term() and expression()
Please specify what version of Turing you are using
the newest



Thank you very much guys

[TerranceN]

You can do this using the forward and body keywords like this:

Turing:

forward proc foo() proc bar()     foo() end bar bar() body proc foo()     put "Win!!!" end foo

[Cezna]

If you are OK using procedures (at least for one of the things), then use forward procedure for the declaration at the top, and body procedure for the actual procedure.

I don't think there's any way to do this with functions.

By the way, TerranceN, how do you have everything in the code formatted right.
Did you just do it manually by tagging everything a certain way?

[TerranceN]

I know you can do this with functions, I have done it before. I'm on Ubuntu (linux, no Turing) at the moment so forgive me if my syntax is wrong:

Turing:

forward fcn GimmeAWin() : string proc Main()     put GimmieAWin() end Main Main() body fcn GimmeAWin() : string     result "Win!!!" end GimmeAWin

As for the formatting use syntax tags

code:

[syntax="Turing"] % your code here [/syntax]

[Cezna]

Ok, so you can do it with functions.
So Ratinho, all you have to do is put this at the top:

Turing:

forward function function_name

and this at the function

Turing:

body function function_name <function code here> end function_name

The forward function line acts as the declaration statement, so as long as this is above any calls to the function, there shouldn't be any problems.

[Ratinho]

hey guys tnx!
it was great solution (the forward and body )
i used it in the day after u post it, sry that i reply only now =]
u r really useful guys!

[Cezna]

Maybe useful enough for +bits or +karma?

[Monduman11]

Cezna @ Sun Jun 20, 2010 6:58 pm wrote:

Maybe useful enough for +bits or +karma?

lol quick question what are bits and karma used for anyways?

[TerranceN]

umm... Feeling badass?

I don't think its used for anything.

[USEC_OFFICER]

It used for giving to people as a way of saying 'Great job' or 'You're awsome' or something like that.

[Cezna]

Go here to read about bits.
Karma is just to show how helpful/unhelpful a person is in general.