[fpc-pascal]Extension of macros exceeds a depth of 16

[Alan Mead]

Ah.  Or "Recursion of macros exceeds..."  I'll check my code.

-Alan

--- Olle Raab <olle.r at automagika.se> wrote:

> 04-07-28 21.42, skrev Alan Mead följande:
> 
> > As a I mentined earlier today in a different thread, I have
> upgraded
> > to 1.9.4 and I appreciate the greater checking.
> > 
> > Most of the new warnings I get are clear but one of my units now
> > reports "Extension of macros exceeds a depth of 16".  What does
> this
>            ^^^^^^^^^^
>   Actually I think the warning message is wrong..
> 
> It should imo be "Expanding". I'll fix this.
>  
> > warning mean and what is the rammification of ignoring it?
> > 
> > The line number where it reports the warning is an {$if def ...}
> and
> > I would assume the warning had something to do with nesting
> compiler
> > conditionals... but that's not the case (unless the parser is
> really
> > getting lost... but since the code operates, I cannot imagne that
> > this is happening..).  This conditional should be at the "top
> > level"--it is not nested under anything.
> 
> It the recursive macro substitution which exceeds a depth of 16.
> 
> This is probably due to a circular definition of a macro, e g
> 
> {$DEFINE X = X}
> 
> So that X is replaced by X, which is replaced by X etc. This is
> probably not
> what you want.
> 
> After 16 replacements the recursion is stoped, thats what it is
> warned
> about.
> 
> Olle
> 
> 
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