>> 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?
My quick test shows compiler renders both the same?
Nick
--
"When you're chewing on life's gristle,
Don't grumble, Give a whistle..."
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
|
|