Messages in this thread |  | | Date | Mon, 07 May 2001 10:59:29 +0200 | From | Helge Hafting <> | Subject | Re: page_launder() bug |
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Tobias Ringstrom wrote: > > On Sun, 6 May 2001, David S. Miller wrote: > > It is the most straightforward way to make a '1' or '0' > > integer from the NULL state of a pointer. > > But is it really specified in the C "standards" to be exctly zero or one, > and not zero and non-zero?
!0 is 1. !(anything else) is 0. It is zero and one, not zero and "non-zero". So a !! construction gives zero if you have zero, and one if you had anything else. There's no doubt about it. > > IMHO, the ?: construct is way more readable and reliable.
Thats your opinion. There are many others. Some don't like the ?: at all, for example. And some like all valid C.
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