boost::mpl11::arg< n > Struct Template Reference

Returns the nth of its arguments. More...

#include <boost/mpl11/fwd/functional.hpp>

Detailed Description

template<detail::std_size_t n>
struct boost::mpl11::arg< n >

Returns the nth of its arguments.

Indexing starts at 1, so that arg<1> returns the 1st argument, arg<2> the 2nd and so on. Using arg<0> is an error. Passing less than n arguments to arg<n> is also an error.