On Wed, 11 Dec 2002 15:36:39 -0500, David Abrahams <[EMAIL PROTECTED]> wrote:
>How? > >What we want is something that can be used like: > > #define BOOST_WORKAROUND(symbol,test) (((symbol) != 0) && ((symbol) test)) I see the parentheses here becoming more and more :-) Are you thinking to some usage where the first argument of the macro invocation is not a single pp-token? > > #if BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530) > // workaround code > #endif > >How can we say > > #if BOOST_WORKAROUND(__SUNPRO_CC, /*something involving 0x530 */) > >and have it enter the #if and warn when __SUNPRO_CC > 0x530 ? Well, I will put off thinking about a portable way to generate an error (I'm under the impression it is possible but I want to experiment a bit), but if Paul knows a portable way to emit a *warning* upon macro invocation, well, I'm struck dumb with astonishment! Genny. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
