A slight correction but still... On 2012-07-10 10:18:04 +0000, Peter Dimov said:
BOOST_NO_VARIADIC_MACROS means "variadic macros are not supported".
I'm sorry, but I think this is incorrect. AFAIK, the above naming would mean: "Variadic macros -- the feature required by the C++ standard -- are not supported". And of course, there was no such feature required before C++11. For language extensions, there is a convention to call such macros in the positive form using the word "has", e.g. BOOST_HAS_VARIADIC_MACROS. More info: http://boost.org/libs/config/doc/html/boost_config/boost_macro_reference.htm...
BOOST_NO_CXX11_VARIADIC_MACROS means "C++11 variadic macros are not supported, but other variadic macros may be".
This is correct, in a way, given that a future C++ standard may refine the variadic macros somehow.
This is why we have NO_CXX11_FUNCTIONAL, for example, and not just NO_FUNCTIONAL - <functional> is present, but the C++11 portions aren't.
This statement is correct, since the header <functional> was already required in C++03. -- Pyry Jahkola pyry.jahkola@iki.fi https://twitter.com/pyrtsa