Thorsten Froehlich <tho### [at] trfde> wrote:
>> What do you need the STL for? Reference counting is trivial to
>> implement.

> Yes, reinvent the wheel.

  Exactly which part of the STL implements reference counting?

  (Ok, most std::string implementations use the copy-on-write technique,
which is a superset of reference counting, but that's a completely different
story because it's a completely hidden feature which you can't use in any
way yourself. Other than that, I don't think there's reference counting
anywhere in the STL.)

>  And then try to add it in a clean manner in
> POV-Ray.  The problem of not being able to use "real" classes as members of
> most data structures makes it a real hassle.  It is about getting a clean
> well-working implementation.  It isn't about "Reference counting is trivial
> to implement." at all.

  I suppose that since pov4 will be designed from the scratch, it will be
made so that reference counting will be easier to implement (ie. the
"file handle" entity is a class in the first place).


  Reference counting and the copy-on-write technique are quite efficient
ways of improving the performance of a program when well used.

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