"Agoston Bejo" <gusz1@freemail.hu> writes:
"David Abrahams" <dave@boost-consulting.com> wrote in message news:ur7srmmpm.fsf@boost-consulting.com...
"Wolfgang Meyer" <Wolfgang.Meyer@informatik.uni-oldenburg.de> 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<T, paint>::result (true if T::paint() exists) has_member<T, m_size>::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:
Much better techniques than the ones shown there are now known.
-- Dave Abrahams Boost Consulting http://www.boost-consulting.com
And where are they available, or at least can be read of?
You might look at http://www.boost-consulting.com/boost/boost/detail/is_incrementable.hpp, though it could be improved by using the comma operator to deal with the possibility of void returns from a user defined operator++. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com