16 Jun
2007
16 Jun
'07
5:18 a.m.
Server Levent Yilmaz wrote:
I did somehow come up with this dirty trick, though it doesn't quite cut it:
<snip code>
any ideas?
Yep, here's another dirty trick ;-): #include <boost/preprocessor/detail/is_unary.hpp> #define SPECIAL (whatever) #define IS_SPECIAL BOOST_PP_IS_UNARY IS_SPECIAL(a) // 0 IS_SPECIAL(b) // 0 IS_SPECIAL(SPECIAL) // 1 It isn't entirely portable to older preprocessors (that's why this code lives in preprocessor/detail) but should work with latest versions of the widely-used compilers. Regards, Tobias