I'm looking at cleaning up a few compile nits and I'm wondering what the
officially approved way of silencing "may not be used" warnings:
int
foo(int flag)
{
int j;
if (flag)
j = 1;
/*
* This noop statement is enough to confuse the optimiser so it
* forgets that j is initialised iff flag != 0
*/
flag = !!flag;
if (flag)
return j;
return 0;
}
Us humans can see that j is not used without being set, but cc can't. How do I
remove this warning in a style(9)-compatible way?
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