Peter Dimov wrote:
John Maddock:
Is the proposal here: http://svn.boost.org/trac/boost/ticket/1130 a viable way of fixing the pesky gcc warnings from BOOST_WORKAROUND?
It works for me.
That was my first thought, however, on reflection it looks fragile: with this change BOOST_WORKAROUND when applied to an unknown pp-symbol will always silently return 0, which isn't what we want to have happen :-( What if we reverse the logic a little: # define BOOST_WORKAROUND(symbol, test) \ (0 == (BOOST_WORKAROUND_GUARD_ ## symbol) && \ (symbol != 0) && (1 % (( (symbol test) ) + 1))) Which (I hope!) has no change to current behaviour if BOOST_WORKAROUND_GUARD_ ## symbol is not defined. Then for common pp-symbols we add: #define BOOST_WORKAROUND_GUARD_BOOST_MSVC !defined(BOOST_MSVC) And hopefully the warnings get suppressed: at least in the common cases. John.