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From: Brian Drummond <brian@shapes.demon.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: How to initialize a matrix of one column only?
Date: Sun, 8 Jul 2012 17:05:21 +0000 (UTC)
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Date: 2012-07-08T17:05:21+00:00
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On Sat, 07 Jul 2012 21:09:56 -0500, Nasser M. Abbasi wrote:

> On 7/7/2012 8:47 PM, John B. Matthews wrote:
> ....
>>> I tried B:=(1=>9.0,2=>2.03=>-2.0);
> ...
>>>
>>> What is the correct syntax to use?
>>
>> According to 4.3.3 Array Aggregates, you need to use named notation for
>> a single component, otherwise "a single expression in parentheses is
>> interpreted as a parenthesized expression."
>>
>>     B := ((1 =>  9.0),
>>           (1 =>  2.0), (1 => -2.0));

> But the above is a good example of why Ada has the reputation of being
> too verbose.

To be fair, Ada is not always so verbose; a 1-column array is an unusual 
case. 

If you need to write this more than once, I would try to abstract out the 
ugliness with a function taking a vector and returning the 1-column 
equivalent. For an initialisation, I would be surprised if there was any 
overhead at all...

- Brian