Hi,
I tried using FPC 2.5.1 today to see how compatible is our application with
it compared to FPC 2.4.1
I got stacks of the following errors. Why is this change forced in FPC
2.5.1? TBulkInvoiceRateListForm class is a descendant of TfpgWindowBase so
there should be a problem. I don't understand. :-/
-------------
frm_bulkinvoiceratelist.pas(84,77) Error: Call by var for arg no. 2 has to
match exactly: Got "TBulkInvoiceRateListForm" expected "TfpgWindowBase"
fpg_base.pas(2207,31) Hint: Found declaration:
TfpgApplicationBase.CreateForm(TComponentClass,out TfpgWindowBase);
frm_bulkinvoiceratelist.pas(307) Fatal: There were 1 errors compiling
module, stopping
--------------------
To get my code to compile again, I have to change the following code from
fpgApplication.CreateForm(TBulkInvoiceRateListForm, BulkDiscountListForm);
...to this...
fpgApplication.CreateForm(TBulkInvoiceRateListForm,
TfpgWindowBase(BulkDiscountListForm));
Now I have to include ugly casts all over the place. :-(
I got similar issues with TStrings and TStringList. TStringList is a
descendant of TStrings, but I can't pass a TStringList type as a parameter
to a method declared with TStrings.
Maybe I don't understand the var parameter correctly (but haven't tested to
see what happens if I remove var from parameter list). If I have a class
instance, when should I pass it to a method or function/procedure as var
and when don't I need to use var parameters?
Regards,
- Graeme -
--
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://opensoft.homeip.net/fpgui/
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