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    SubjectRe: A pettiness question.
    On Wed, 21 Sep 2005, Nick Warne wrote:

    > >> This give a enum of {0,1}. If test is not 0, !!test will give 1,
    > >> otherwise 0.
    > >>
    > >> Am I right?
    > >
    > > Yes. I think of it as a "truth value" predicate (or operator).
    >
    > Interesting. I thought maybe this way was trick, until later I experimented.
    >
    > My post here (as Bill Stokes):
    >
    > http://www.quakesrc.org/forums/viewtopic.php?t=5626
    >
    > So what is the reason to doing !!num as opposed to num ? 1:0 (which is more
    > readable I think, especially to a lesser experienced C coder). Quicker to
    > type?

    Some people also prefer the following form:
    num != 0

    > My quick test shows compiler renders both the same?
    >
    > Nick
    > --
    > "When you're chewing on life's gristle,
    > Don't grumble, Give a whistle..."
    > -

    -Vadim Lobanov
    -
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