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Date: Sat, 16 Jun 2007 00:03:23 +0200
From: Georg Bauhaus <bauhaus.rm.tsoh@maps.futureapps.de>
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Subject: Re: Amount of copying on returned constant objects
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Date: 2007-06-16T00:00:21+02:00
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Alex R. Mosteo wrote:
> 
> 
> I wonder however about results of functions, that are not modified.
> 
> ... In C++ I could use constant references. Now, I wonder if 
> 
> a) is there something in the ARM that prevents an equivalent transparent
> optimization in the Ada side (returning the reference when it is detected
> that the returned object is not modified)?

OTOH, I might want a constant copy because the object in the
container is going to be modified... Can a compiler detect this?



-- Georg