[Development] Ideas for adding an argument with default value to a virtual method

Thiago Macieira thiago.macieira at intel.com
Tue Jan 24 23:36:53 CET 2012


On Tuesday, 24 de January de 2012 22.45.54, Stephen Kelly wrote:
> I think it makes sense, but that is an often used and overridden virtual 
> method, and changing it would not make the compiler notify about the
> porting  need (Can't expect downstream to be using Q_DECL_OVERRIDE
> already).

Change the return value of the method that you don't want overridden to 
something completely different.

You cannot override a method with a non-covariant return type, so that will 
cause a compiler error and point to the change.
-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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