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From: "Jeffrey R. Carter" <spam.jrcarter.not@acm.nospam.org>
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Subject: Re: Containers - nontrivial element access
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Matthew Heaney wrote:
> 
> This is far less safe then simply using Update_Element in nested
> fashion.

Sure, I wouldn't recommend it, any more than I'd recommend using C/++. 
But since C/++ uses reference semantics, while Ada uses value semantics, 
this kind of mess is needed to get something in the C/++ spirit.

-- 
Jeff Carter
"Every sperm is sacred."
Monty Python's the Meaning of Life
55