[PD-dev] unused variables

[Mathieu Bouchard]

Johannes Zmölnig wrote:

>   static void help_time(t_time *x)
>   {
> +   ZEXY_USEVAR(x);
>     post("\n%c time\t\t:: get the current system time", HEARTSYMBOL);
>     post("\noutputs are\t:  hour / minute / sec / msec");
>

You don't need to do things like that. Almost all of the time, parameters
that are not in use, have a reason for not being in use, and it's the
other local variables that proliferate as the code evolves and we forget
to delete those variables because they are not seen outside of the
function that they are defined in.

With GCC 3, you can do:

  -Wall -Wno-unused -Wunused-variable

which only checks for local variables, and disables checks on unused 
parameters, unused functions, etc.; it's also possible to reenable check 
for unused functions if it is helpful to you.

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| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada