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NNTP-Posting-Date: Mon, 07 Sep 2009 02:27:36 -0500
Newsgroups: comp.lang.ada
Subject: Re: Why no named case statements?
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From: Ole-Hjalmar Kristensen
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Date: 07 Sep 2009 09:27:35 +0200
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Date: 2009-09-07T09:27:35+02:00
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That could be useful, but I have seen compilers produce worse code by
having labels around (like not putting variables in registers),
presumably because the analysis showed it was a potential target for a
goto.

>>>>> "B" == Britt  <britt.snodgrass@gmail.com> writes:
<snip>
    B> Labels are also useful as breakpoint targets if the compiler produces
    B> associated symbolic information that can then be used by the
    B> debugger.  Using labels for this purpose is much better (more
    B> maintainable) than breaking on line numbers.  Such permanent
    B> breakpoints are sometimes useful in formal white-box test procedures.
    B> SPARK was recently changed to allow  use of Ada labels for this
    B> purpose (breakpoints, not gotos), and the GNATPP pretty-printer now
    B> has a new switch to format Ada labels on separate lines (as shown in
    B> Dmitry's example).
<snip>
    B> - Britt

-- 
   C++: The power, elegance and simplicity of a hand grenade.