Re: [boost] virtual function templates

Subject: Re: [boost] virtual function templates
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2010-02-20 08:33:36

strasser_at_[hidden] wrote:

> real virtual function templates are obviously not possible without a 
> JIT-compiler

Wrong, you would just need to do link-time template instantiation, which 
is actually required by the C++ standard (but few implement it, and none 
had the idea to use it to implement virtual template functions as an 
extension).

> but if all derived types are known to the base type, 

Then you might as well use Boost.Variant.

> the runtime overhead besides the virtual call is one switch().

It should be possible to be just a switch and no virtual call.