Re: Interest in standard smart pointers for Ada 2020

[Lucretia <laguest9000@googlemail.com>]

On Thursday, 31 August 2017 13:12:20 UTC+1, Alejandro R. Mosteo  wrote:
> I wonder if there would be interest in standardizing some usual smart 
> pointers for the next revision. I will try to state the problems. I hope 
> you'll point any misunderstandings on my part.

Yes, I've had to write these in the past too. Royal pain to keep doing.

> If we look at the cousin C++, the standard pointers there are:

Cousin?
 
> > unique_ptr [1]
> 
> > Allows exactly one owner of the underlying pointer. Use as the default choice for POCO unless you know for certain that you require a shared_ptr. Can be moved to a new owner, but not copied or shared.

I just had to look up POCO, seems to be Plain old CLR Object, don't think that's what you meant.

I would add auto_ptr too, I've implemented one before, although I think Block_Pointer would be a better Ada name for it. Should be limited, initialised with extended return and frees the contents at the end of the block in which it was instantiated.