Jonas Maebe wrote:
On 18 Mar 2006, at 16:46, Vincent Snijders wrote:
The gtk2int.pas file of lazarus doesn't compile with fpc 2.1.1
(revision 2954) anymore.
The error message is:
gtk2int.pas(268,67) Error: Wrong type "TObject" in array constructor
Line 268 looks like this:
gtk_list_store_set(FGtkListStore, @ListItem, [FColumnIndex+1,
AnObject, -1]);
The declaration of gtk_list_store_set:
procedure gtk_list_store_set(list_store:PGtkListStore;
iter:PGtkTreeIter); varargs; cdecl; external gtklib;
I saw in the logs that there were some changes with varargs. Is this
a bug in the current compiler or should the lazarus code be fixed?
I don't know, to be honest. C doesn't know objects, so you can't
compare with that. C++ doesn't know Delphi-style objects either, its
object model is more like TP's. And a pointer to a C++ or TP object is
obviously just a pointer like any other, and you can pass pointers to
varargs. It is trivial to add support for Delphi-style objects again
(since converting those to a pointer is no problem).
We added a pointer typecast to our call to gtk_list_store_set. This code
compiles (didn't test running it). As far as I am concerned this is good
enough, so no further need to change the compiler.
Vincent.
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