Re: Ada Smileys in C++ lib Conversion

[Maciej Sobczak <see.my.homepage@gmail.com>]

On 14 Sie, 12:57, Brian Drummond <brian_drumm...@btconnect.com> wrote:

> I thought I was being really really smart years ago in C, when I decided to
> convert all those #defines to integer constants...
>
> const int MC_CTL_LOCAL_C  = 0x80;
> and so on.

Yes, this is a good practice. It is better to avoid using preprocessor
for anything other than so called include guards.

> Of course I was declaring integer variables, who's storage class happens to be
> named "constant".

No, there is no such storage class. If these objects were globals
(which was most likely the case), then their storage class is static.
Const means that the given name cannot be used to modify the referred
object and has nothing to do with the storage class (it might
influence the linkage, though).

> But it certainly puzzled me to be told that I couldn't use a "const" in a
> constant expression!

And what would that mean, anyway? How would you want to use it and
what would you like to achieve with it?

--
Maciej Sobczak * http://www.inspirel.com

YAMI4 - Messaging Solution for Distributed Systems
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