Using macros as statements (Re: Typeof operator in C)

[``Bob'' is the gun and YOU are the bullet...]

In article <19840 at watdragon.waterloo.edu> smking at lion.waterloo.edu (Scott
M. King) writes:
>To make a macro behave exactly as a statement, replace the { and } in
>the macro definition with START_MACRO and END_MACRO:
>#define START_MACRO		do {
>#define END_MACRO		} while ( 0 )

Unfortunately this is not lint-compatible ("constant in conditional
context").  I use a slight variation:

#ifdef lint
int _ZERO_;
#else
#define	_ZERO_ 0
#endif

#define	_STMT(s)	do { s } while (_ZERO_)

#define	FOO(bar)	_STMT(if (bar) frob();)

-- 
David DiGiacomo, Sun Microsystems, Mt. View, CA  sun!david david at eng.sun.com