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Re: CVS commit: src/sys/fs/puffs

    Date:        Wed, 15 Oct 2014 19:41:40 +0100
    From:        David Laight <>
    Message-ID:  <>

  | Consider what happens if you write:
  | When DPRINTF() expands 'if (xxx) yyy' it all goes horribly wrong.

Of course, the do { } while(0) wrapping is needed in the DPRINTF
expansion - that was also added - that's there to deal with problems
just like that.   WIth that, DPRINTF() acts just like a function
(except it has no value of course) for syntax purposes, and doesn't
need to be surrounded with {} every time it is used.


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