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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: String filtering
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Date: Tue, 27 Sep 2005 14:54:30 +0200
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Date: 2005-09-27T14:54:28+02:00
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On Tue, 27 Sep 2005 12:12:32 +0100, Martin Dowie wrote:

> Martin Dowie wrote:
>> Dmitry A. Kazakov wrote:
>> [snip]
>>>>        New_Str := To_Unbounded_String("");
>>>
>>> No need for that, it is initially an empty string.
>>
>> Nope - it's an uninitialized string. But I agree that it you've
>> already determined the size then there is no need for this as each
>> character in New_Str will be certain to be filled.
> 
> Actually, the OP has it right, because it's uninitialised it is filled with
> rubbish and of the size requested and the OP is going to /append/ items to
> it, so it needs to be empty before the loop starts.

No. ARM 95 A.4.5(49) reads:

"...If an object of type Unbounded_String is not otherwise initialized, it
will be initialized to the same value as Null_Unbounded_String."

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de