Date: Thu, 04 Jun 1998 16:22:22 -0500 From: "Chris Csanady" <cc@swing.ca.sandia.gov> To: freebsd-hackers@FreeBSD.ORG Subject: style(9) error? Message-ID: <199806042122.QAA00625@swing.ca.sandia.gov>
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I would like to make use of a feature that style tells me I can use, but
gcc tells me I can not..
>From style(9):
es, it makes it easier to read. If the macro encapsulates a compound
statement, enclose it in a ``do'' loop, so that it can safely be used in
``if'' statements. Any final statement-terminating semicolon should be
supplied by the macro invocation rather than the macro, to make parsing
easier for pretty-printers and editors.
#define MACRO(x, y) do { \
variable = (x) + (y); \
(y) += 2; \
} while(0)
As far as I can tell, it is impossible to put a do loop in a if statement,
or anything else. Is this correct? I always thought that blocks evaluated
to their last statements, but it seems not..
Chris Csanady
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