Macro BOOST_VMD_IS_EMPTY

Macro BOOST_VMD_IS_EMPTY_LIST

BOOST_VMD_IS_EMPTY_LIST — Tests whether a list is an empty Boost PP list.

// In header: <boost/vmd/list.hpp>

BOOST_VMD_IS_EMPTY_LIST(param)

An empty Boost PP list consists of the single identifier 'BOOST_PP_NIL'. This identifier also serves as a list terminator for a non-empty list.

param = a preprocessor parameter

returns = 1 if the param is an empty Boost PP list 0 if it is not.