on Tue Aug 28 2007, "John Maddock" <john-AT-johnmaddock.co.uk> wrote:

Can anyone remember why BOOST_WORKAROUND didn't use the defined() operator internally, and/or what problems this may cause?

'defined' only has special meaning in #if and #elif expressions and can't appear as the result of a macro expansion. http://gcc.gnu.org/onlinedocs/cpp/Defined.html -- Dave Abrahams Boost Consulting http://www.boost-consulting.com The Astoria Seminar ==> http://www.astoriaseminar.com