[fpc-pascal] Forward declarations

[Jürgen Hestermann]

Timothy Groves schrieb:
> Can anyone think of a situation in which you would *have* to use 
> forward declared functions?  I'm trying to come up with an example for 
> such for my book, and I am drawing a blank.
>

Well, maybe this one:

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type      SorterProcType  = function (String1,String2 : shortstring) : 
boolean;
function CompareIt1(String1,String2 : shortstring) : boolean; forward;
function CompareIt2(String1,String2 : shortstring) : boolean; forward;
function CompareIt3(String1,String2 : shortstring) : boolean; forward;
const SortCriteria : SortProcType = CompareIt1;

-------------------------------------------------------------------

I don't know of another way that you can use one of the "CompareIt1/2/3" 
functions in the const declaration for "SortCriteria" (but maybe there 
is one).