Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

You've currently chosen the 1.91.0 version. If a newer release comes out, you will continue to view the 1.91.0 version, not the new latest release.

Struct template as_param

Struct template as_param

boost::type_erasure::as_param — Metafunction that creates a param.

Synopsis

// In header: <boost/type_erasure/param.hpp>

template<typename Any, typename T> 
struct as_param {
  // types
  typedef unspecified type;
};

Description

If T is a (cv/reference qualified) placeholder, returns param<concept_of<Any>::type, T>, otherwise, returns T. This metafunction is intended to be used for function arguments in specializations of concept_interface.

See Also: derived, rebind_any