Compilers and programming style (was Re: A question of style)

[Tom Neff]

If you have a specialized systems/hardware-type situation where merely
referring to a variable has useful side effects, then you can cast it
to (void) or some such, to make this obvious.  Otherwise, it's probably
a coding error and lint should catch it.

The issue of how much of lint's work the c compiler ought to do is a
separate one.
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