[fpc-devel] Minor Error in $delphi mode for a unit I'm converting

Michael Van Canneyt michael at freepascal.org
Fri Jun 10 10:48:07 CEST 2005

On Fri, 10 Jun 2005, L505 wrote:

> While converting a KOL regular expression unit for use with freepascal, I came
> across only one compile error, in {$mode delphi}
> The error was here:
> const
>  RegExprInvertCaseFunction : TRegExprInvertCaseFunction=TRegExpr.InvertCaseFunction;
> Error: Typed constants of the type "procedure of object" can only be initialized
> with NIL
> The code below seemed to fix the problem, as it compiled ok.
> var
>  RegExprInvertCaseFunction : TRegExprInvertCaseFunction;
> Is the error that I got correct even for delphi compatability? Is it bad code,
> good code?

It is bad code.

Since there is no instance of TRegExpr, the assignment would only work for
a class method, which makes little sense.


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