Am 24.08.11 00:08, schrieb Joerg Sonnenberger:
On Tue, Aug 23, 2011 at 09:58:53PM +0000, David Holland wrote:
On Tue, Aug 23, 2011 at 11:52:11PM +0200, Marc Balmer wrote:
> (void)wait! That was a pure personal remark. I really don't know where
> that (void)bla idiom comes from, and I obviously don't (void)like it.
It's an artifact of our stupid lint(1).
Not really, it is used by other analyzers to mean "yes, I know this
returns something, but I don't care". The major exception of course is
that GCC broke it for the attributed usage -- half of the pain of
dealing with modern glibc in this regard.
But that is kind of, well, unneeded. A compiler can detect that I don't
use the return value by seeing that I don't use the return value.
Why tell the compiler that I don't want to use the return value? It's a
stupid rule, to say the least.
Next thing will be adding a (really) and (maybe) statement to functions
which we really or maybe want to execute, and maybe (never) for
functions that we never call:
int (really)
main(int argc, char *argc[])
{
}
int (maybe)
othermain(void)
{
}
void (never)
dontdothisathome(void)
{
/* NOTREACHED */
}