On Sat, 4 Jul 2009 23:24:53 +0100

David Laight  wrote:
> IMHO using (1 << n) is enough to say 'these might be or'ed together.

quoted text
> Even a sequence of hex constants will be an obvious bit pattern list.

I agree that C bit operators are obvious enough, although that may be a

per-project style preference issue.  With the bit operators, noone has

to look at whatever the macro may expand to, especially that every

project might define its unstandard wrapper...  Moreover, the macros

aren't necessarily shorter or more readable, and they result in less

portable code.  It seems that KNF doesn't have a suggestion about it

either.
But I don't have a strong opinion about this.

--

Matt