Class template make_recursive_variant_over

boost::make_recursive_variant_over — Exposes a recursive variant whose bounded types are the elements of the given type sequence.

Synopsis

template<typename Sequence> 
class make_recursive_variant_over {
public:
  // types
  typedef variant< unspecified > type;
};

Description

type has behavior equivalent in every respect to make_recursive_variant< Sequence[0], Sequence[1], ... >::type (where Sequence[i] denotes the i-th element of Sequence), except that no upper limit is imposed on the number of types.

Notes:

  • Sequence must meet the requirements of MPL's Sequence concept.

  • Due to standard conformance problems in several compilers, make_recursive_variant_over may not be supported on your compiler. See BOOST_VARIANT_NO_TYPE_SEQUENCE_SUPPORT for more information.

Copyright © 2002, 2003 Eric Friedman, Itay Maman
Permission to copy, use, sell and distribute this software is granted provided this copyright notice appears in all copies. Permission to modify the code and to distribute modified code is granted provided this copyright notice appears in all copies, and a notice that the code was modified is included with the copyright notice. This software is provided "as is" without express or implied warranty, and with no claim as to its suitability for any purpose.

Top