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//Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.

//Distributed under the Boost Software License, Version 1.0. (See accompanying
//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifndef UUID_7E7AB138196311E0907B246CDFD72085
#define UUID_7E7AB138196311E0907B246CDFD72085

#include <boost/qvm/deduce_scalar.hpp>
#include <boost/qvm/vec_traits.hpp>
#include <boost/qvm/static_assert.hpp>

namespace
boost
    {
    namespace
    qvm
        {
        template <class T,int D>
        struct vec;

        namespace
        qvm_detail
            {
            template <class V,int D,
                int VD=vec_traits<V>::dim>
            struct
            deduce_vec_default
                {
                typedef vec<typename vec_traits<V>::scalar_type,D> type;
                };

            template <class V,int D>
            struct
            deduce_vec_default<V,D,D>
                {
                typedef V type;
                };
            }

        template <class V,int Dim=vec_traits<V>::dim>
        struct
        deduce_vec
            {
            BOOST_QVM_STATIC_ASSERT(is_vec<V>::value);
            typedef typename qvm_detail::deduce_vec_default<V,Dim>::type type;
            };

        namespace
        qvm_detail
            {
            template <class A,class B,int D,
                bool VA=is_vec<A>::value,
                bool VB=is_vec<B>::value,
                int AD=vec_traits<A>::dim,
                int BD=vec_traits<B>::dim>
            struct
            deduce_v2_default
                {
                typedef vec<
                    typename deduce_scalar<
                        typename scalar<A>::type,
                        typename scalar<B>::type>::type,
                    D> type;
                };

            template <class V,int D>
            struct
            deduce_v2_default<V,V,D,true,true,D,D>
                {
                typedef V type;
                };
            }

        template <class A,class B,int D>
        struct
        deduce_vec2
            {
            BOOST_QVM_STATIC_ASSERT(is_vec<A>::value || is_vec<B>::value);
            typedef typename qvm_detail::deduce_v2_default<A,B,D>::type type;
            };
        }
    }

#endif