97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
#ifndef BOOST_QVM_DEDUCE_MAT_HPP_INCLUDED
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#define BOOST_QVM_DEDUCE_MAT_HPP_INCLUDED
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// Copyright 2008-2022 Emil Dotchevski and Reverge Studios, Inc.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/qvm/deduce_scalar.hpp>
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#include <boost/qvm/mat_traits.hpp>
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#include <boost/qvm/static_assert.hpp>
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namespace boost { namespace qvm {
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template <class T,int Rows,int Cols>
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struct mat;
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namespace
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qvm_detail
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{
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template <class M,int R,int C,class S,
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int MR=mat_traits<M>::rows,
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int MC=mat_traits<M>::cols,
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class MS=typename mat_traits<M>::scalar_type>
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struct
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deduce_m_default
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
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typedef mat<typename mat_traits<M>::scalar_type,R,C> type;
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};
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template <class M,int R,int C,class S>
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struct
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deduce_m_default<M,R,C,S,R,C,S>
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
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typedef M type;
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};
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}
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template <class M,int R=mat_traits<M>::rows,int C=mat_traits<M>::cols,class S=typename mat_traits<M>::scalar_type>
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struct
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deduce_mat
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
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typedef typename qvm_detail::deduce_m_default<M,R,C,S>::type type;
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};
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namespace
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qvm_detail
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{
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template <class A,class B,int R,int C,class S,
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bool IsScalarA=is_scalar<A>::value,
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bool IsScalarB=is_scalar<B>::value>
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struct
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deduce_m2_default
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{
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typedef mat<S,R,C> type;
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};
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template <class M,int R,int C,class S>
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struct
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deduce_m2_default<M,M,R,C,S,false,false>
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
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typedef M type;
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};
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template <class A,class B,int R,int C,class S>
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struct
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deduce_m2_default<A,B,R,C,S,false,true>
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<A>::value);
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typedef typename deduce_mat<A,R,C,S>::type type;
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};
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template <class A,class B,int R,int C,class S>
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struct
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deduce_m2_default<A,B,R,C,S,true,false>
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<B>::value);
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typedef typename deduce_mat<B,R,C,S>::type type;
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};
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}
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template <class A,class B,int R,int C,class S=typename deduce_scalar<typename scalar<A>::type,typename scalar<B>::type>::type>
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struct
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deduce_mat2
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{
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BOOST_QVM_STATIC_ASSERT(is_mat<A>::value || is_mat<B>::value);
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typedef typename qvm_detail::deduce_m2_default<A,B,R,C,S>::type type;
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};
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} }
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#endif
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