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From: Brian Drummond <brian_drummond@btconnect.com>
Subject: Re: Ada Smileys in C++ lib Conversion
Date: Mon, 16 Aug 2010 13:08:29 +0100
Date: 2010-08-16T13:08:29+01:00	[thread overview]
Message-ID: <b3ai6699k74bami86kgddbh7em15gcq358@4ax.com> (raw)
In-Reply-To: 15cdcb9e-3747-48e3-9be0-8829dfbcc3c8@w30g2000yqw.googlegroups.com

On Sun, 15 Aug 2010 03:04:54 -0700 (PDT), Maciej Sobczak
<see.my.homepage@gmail.com> wrote:

>On 15 Sie, 03:16, Brian Drummond <brian_drumm...@btconnect.com> wrote:
>
>> >Yes, this is a good practice. It is better to avoid using preprocessor
>> >for anything other than so called include guards.
>>
>> Except when the result doesn't work!
>
>If the result of *not* using preprocessor doesn't work, then with
>preprocessor it would be even worse.

>Example, please. Example that shows that I cannot use const object
>where constant is expected.
>
>(Hint: there are some *very* obscure corner cases with templates, but
>if you are there already, you are screwed anyway.)

>> In this instance I wanted to declare an array whose size was the constant
>> expression in question.
>
>const int size = 7;
>int array[size];

error: variably modifed 'array' at file scope

- Brian



  reply	other threads:[~2010-08-16 12:08 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-13 14:20 Ada Smileys in C++ lib Conversion Warren
2010-08-13 15:06 ` Yannick Duchêne (Hibou57)
2010-08-13 16:53 ` Anh Vo
2010-08-14  1:36   ` Warren
2010-08-14  9:52     ` Georg Bauhaus
2010-08-14 10:57     ` Brian Drummond
2010-08-14 20:34       ` Maciej Sobczak
2010-08-14 21:01         ` Dmitry A. Kazakov
2010-08-15  1:16         ` Brian Drummond
2010-08-15 10:04           ` Maciej Sobczak
2010-08-16 12:08             ` Brian Drummond [this message]
2010-08-16 12:13               ` Georg Bauhaus
2010-08-16 12:30             ` Brian Drummond
2010-08-16 12:39               ` Maciej Sobczak
2010-08-16 21:39                 ` Brian Drummond
2010-08-16 22:53                   ` Robert A Duff
2010-08-24 10:12           ` David Thompson
2010-08-30  9:51             ` Brian Drummond
2010-08-16 14:54       ` Warren
2010-08-16 20:27         ` Maciej Sobczak
2010-08-17 12:57           ` Warren
2010-08-17 13:37             ` Maciej Sobczak
2010-08-17 15:07               ` Georg Bauhaus
2010-08-18 17:31               ` Warren
2010-08-24 10:12             ` David Thompson
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