[Boost-users] Re: Looking for more advanced type_traits-like functionality

"Wolfgang Meyer" writes:

...

that is something like this: How can I determine if a type T has such and such member? It

would look like something like this:

has_member::result (true if T::paint() exists) has_member::result (true if T::m_size exists)

AFAIK, checking for arbitrary members at compile time is not possible in a portable way.

However, it seems that you can check for operators:

http://lists.boost.org/MailArchives/boost/msg29007.php

Much better techniques than the ones shown there are now known. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com