[fpc-devel] ref count issue with out param

Martin Frb lazarus at mfriebe.de
Sat Jun 13 15:15:01 CEST 2015

On 13/06/2015 10:05, Jonas Maebe wrote:
> Martin Frb wrote:
>> ebx is a temp copy of s1, but then f1 becomes nil, and ebx points to
>> freed memory.
> It's because "out" finalises on the caller side (due to its COM 
> origin, I guess) while value parameters get their reference count 
> increased on the callee side (for efficiency reasons, I guess). This 
> is all Delphi-compatible.

I dont have Delphi, but

says Delphi handles it different.

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