From: lutz@iks-jena.de (Lutz Donnerhacke)
Subject: Re: Array of exception
Date: Thu, 4 Oct 2001 08:53:10 +0000 (UTC)
Date: 2001-10-04T08:53:10+00:00 [thread overview]
Message-ID: <slrn9ro8rl.4a.lutz@taranis.iks-jena.de> (raw)
In-Reply-To: Pmpu7.2877$403.1630126@news1.rdc1.sfba.home.com
* tmoran@acm.org wrote:
>> when -1 => raise EXXX;
>> when -2 => raise EYYY;
>> ...
>>Using Exception_Id and Raise_Expression require me to rewrite the whole CASE
>>into an explicit array so I do not shorten the source code anyway.
>
>Clarify please. It appears that somewhere you need to establish the
>relation between, eg, -2 and EYYY.
Trivial: I'd tried
type extract_inband_exception_t is array(Positive) of exception;
extract_inband_exception : constant extract_inband_exception_t := (
EXXX, EYYY, ... );
in order to instanciate the list of exceptions and there order at once.
>Is
> case res is
> when -1 => raise EXXX;
> when -2 => raise EYYY;
> ...
>preferable to
> jump : constant array(...) of Exception_ID :=
> (-1 => EXXX'Identity,
> -2 => EYYY'Identity,
> ...
Yep. The case generates faster code for the normal return value case. ;-)
prev parent reply other threads:[~2001-10-04 8:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-02 8:50 Array of exception Lutz Donnerhacke
2001-10-02 11:02 ` maa
2001-10-02 10:13 ` Lutz Donnerhacke
2001-10-02 20:23 ` tmoran
2001-10-03 16:25 ` Darren New
2001-10-04 8:53 ` Lutz Donnerhacke [this message]
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