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From: "Martin Dowie" <martin.dowie@baesystems.com>
Newsgroups: comp.lang.ada
References: <426d10d1$1_2@newsfeed.slurp.net>
Subject: Re: Syntax question:  new with a constrained subtype indication
Date: Mon, 25 Apr 2005 18:02:40 +0100
Organization: BAE SYSTEMS
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Date: 2005-04-25T17:03:20+00:00
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James Alan Farrell wrote:
> The thing is, I've read 4.8 of the *annotated* ARM and I don't see
> anything to say I cannot do this.  So what am I missing?  Is there
> something, other than that document, that spells out the allowed types
> of constraint?

What about 4.8(4):

  "An initialized allocator is an allocator with a qualified_expression. An
   uninitialized allocator is one with a subtype_indication. In the
   subtype_indication of an uninitialized allocator, a constraint is
permitted
   only if the subtype_mark denotes an unconstrained composite subtype;
   if there is no constraint, then the subtype_mark shall denote a definite
   subtype."

Cheers

-- Martin