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#include "boost/variant/detail/config.hpp"
#include "boost/mpl/aux_/config/eti.hpp"
#include "boost/mpl/aux_/value_wknd.hpp"

#include "boost/variant/variant_fwd.hpp"
#include "boost/variant/detail/backup_holder.hpp"
#include "boost/variant/detail/enable_recursive_fwd.hpp"
#include "boost/variant/detail/forced_return.hpp"
#include "boost/variant/detail/initializer.hpp"
#include "boost/variant/detail/make_variant_list.hpp"
#include "boost/variant/detail/over_sequence.hpp"
#include "boost/variant/detail/visitation_impl.hpp"

#include "boost/variant/detail/generic_result_type.hpp"
#include "boost/variant/detail/has_nothrow_move.hpp"
#include "boost/variant/detail/move.hpp"

#include "boost/detail/reference_content.hpp"
#include "boost/aligned_storage.hpp"
#include "boost/blank.hpp"
#include "boost/static_assert.hpp"
#include "boost/preprocessor/cat.hpp"
#include "boost/preprocessor/repeat.hpp"
#include "boost/type_traits/alignment_of.hpp"
#include "boost/type_traits/add_const.hpp"
#include "boost/type_traits/has_nothrow_constructor.hpp"
#include "boost/type_traits/has_nothrow_copy.hpp"
#include "boost/type_traits/is_const.hpp"
#include "boost/type_traits/is_same.hpp"
#include "boost/utility/enable_if.hpp"
#include "boost/variant/recursive_wrapper_fwd.hpp"
#include "boost/variant/static_visitor.hpp"

#include "boost/mpl/eval_if.hpp"
#include "boost/mpl/begin_end.hpp"
#include "boost/mpl/bool.hpp"
#include "boost/mpl/empty.hpp"
#include "boost/mpl/find_if.hpp"
#include "boost/mpl/front.hpp"
#include "boost/mpl/identity.hpp"
#include "boost/mpl/if.hpp"
#include "boost/mpl/int.hpp"
#include "boost/mpl/is_sequence.hpp"
#include "boost/mpl/iterator_range.hpp"
#include "boost/mpl/iter_fold_if.hpp"
#include "boost/mpl/logical.hpp"
#include "boost/mpl/max_element.hpp"
#include "boost/mpl/next.hpp"
#include "boost/mpl/deref.hpp"
#include "boost/mpl/pair.hpp"
#include "boost/mpl/protect.hpp"
#include "boost/mpl/push_front.hpp"
#include "boost/mpl/same_as.hpp"
#include "boost/mpl/size_t.hpp"
#include "boost/mpl/sizeof.hpp"
#include "boost/mpl/transform.hpp"
#include "boost/mpl/assert.hpp"

///////////////////////////////////////////////////////////////////////////////
// Implementation Macros:
//
// BOOST_VARIANT_VISITATION_UNROLLING_LIMIT
//   Defined in boost/variant/detail/visitation_impl.hpp.
//
// BOOST_VARIANT_MINIMIZE_SIZE
//   When #defined, implementation employs all known means to minimize the
//   size of variant obje   cts. However, often unsuccessful due to alignment
//   issues, and potentially harmful to runtime speed, so not enabled by
//   default. (TODO: Investigate further.)

#if defined(BOOST_VARIANT_MINIMIZE_SIZE)
#   include <climits> // for SCHAR_MAX
#   include "boost/mpl/eval_if.hpp"
#   include "boost/mpl/equal_to.hpp"
#   include "boost/mpl/identity.hpp"
#   include "boost/mpl/int.hpp"
#   include "boost/mpl/if.hpp"
#   include "boost/mpl/less.hpp"
#   include "boost/mpl/long.hpp"
#   include "boost/mpl/O1_size.hpp"
#endif


namespace boost {

namespace detail { namespace variant {

///////////////////////////////////////////////////////////////////////////////
// (detail) metafunction max_value
//
// Finds the maximum value of the unary metafunction F over Sequence.
//
template <typename Sequence, typename F>
struct max_value
{
private: // helpers, for metafunction result (below)

    typedef typename mpl::transform1<Sequence, F>::type transformed_;
    typedef typename mpl::max_element<transformed_
          
        >::type max_it;

public: // metafunction result

    typedef typename mpl::deref<max_it>::type
        type;

};

///////////////////////////////////////////////////////////////////////////////
// (detail) metafunction find_fallback_type
//
// Provides a fallback (i.e., nothrow default-constructible) type from the
// specified sequence, or no_fallback_type if not found.
//
// This implementation is designed to prefer boost::blank over other potential
// fallback types, regardless of its position in the specified sequence.
//

class no_fallback_type;