q for the C hackers

[Aaron Hope]

On Mon, 2003-08-18 at 20:13, Erik Price wrote:
> However, what is the convention in C?  There seem to be two fine ways 
> of doing it -- using the preprocessor, or the const keyword:
> 
> #define NUMBER_OF_UNITS 8
> 
> const int NUMBER_OF_UNITS = 8;

Generally, the more the compiler knows, the better it can do it's job,
so I usually prefer the latter.  There are still some places in C (C99
specifically) where you you have no choice but to use macros, like array
declarations.  I believe that C++ const variables can be used wherever a
simple #define can.

aaron

BTW, Is there a reason why mailman isn't configured to set the 
reply-to header?
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