[fpc-pascal] Procedure types

Mark Morgan Lloyd markMLl.fpc-pascal at telemetry.co.uk
Sat Dec 20 13:40:15 CET 2008

Michael Van Canneyt wrote:

>> Is there a directive or mode that will allow a procedure variable to be
>> compatible with AddressOf() as defined? Alternatively is there a type which is
>> compatible with any procedure variable (i.e. like Modula-2's PROC, if my
>> memory is correct), and can I overload AddressOf() to handle the specific case
>> of a procedure passed as parameter while leaving it tolerant of other types?
> No you cannot.

Shucks :-)

> Did you try using Delphi mode ? The compiler uses other rules then.

Already am using (*$MODE DELPHI *)

After sleeping on the problem I've set up AddressOf as a macro with the 
value @ which certainly compiles- I'm not at the stage of running the 
program's own integrity tests yet.

I'm still a little uncertain whether macro definition uses := or =  What 
I have found though is that using (* *) doesn't work- the definition has 
to be in {}  However on the machine in question I'm still on version 
2.2.0 of the compiler for various reasons.

Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]

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