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I'm porting a piece of code from C++ and
there they use virtual inline methods. I tried it in FPC but it accepts either virtual OR inline methods. Is this a bug, or a feature that I don't understand enough about?

Regards, Darius

On 18 Aug 2011, at 17:08, <

FPC cannot inline virtual methods under any circumstances (even though in some special cases it would be theoretically possible, such as with final virtual methods or when using whole-program optimization), so it doesn't make sense to allow declaring them.

Jonas

2011/8/18 :

I'm porting a piece of code from C++ and there they use virtual inline methods. I tried it in FPC but it accepts either virtual OR inline methods. Is this a bug, or a feature that I don't understand enough about?

At first I didn't understand how a virtual function can be inlined (in C++), but after reading
http://msdn.microsoft.com/en-us/magazine/cc301407.aspx I understand.

I think fpc is not optimizing so much that it can detect when a virtual function can be inlined. But maybe WPO
(http://wiki.freepascal.org/Whole_Program_Optimization) can do something similar.

Vincent

You can't inline virtual methods, since you don't know which method will be suspect C++ simply ignores the directive in the case of a virtual method.

Michael.

Thanks all for the information. I will have a read to understand the backgrounds better.

Darius