"Matthias Schabel" <boost@schabel-family.org> wrote
Much of the core functionality of the mcs::units library coming up for review works without compiler support for typeof, but other parts require it. I looked through the docs and didn't find any way to explicitly check if typeof is supported, either natively or through Boost Typeof on any given compiler... Suggestions?
If BOOST_TYPEOF_NATIVE is defined, BOOST_TYPEOF will work w/o type registration through either true native support of the compiler or MSVC-specific trick (in which case MSVC_TYPEOF_HACK is also defined). Otherwise, if BOOST_TYPEOF_EMULATION is defined, BOOST_TYPEOF will work through emulation for all registered types, templates, and their combinations. Otherwise <boost/typeof/typeof.hpp> is not included. HTH, Arkadiy