87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
#ifndef BOOST_QVM_DETAIL_MAT_ASSIGN_HPP_INCLUDED
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#define BOOST_QVM_DETAIL_MAT_ASSIGN_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/gen/mat_assign2.hpp>
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#include <boost/qvm/gen/mat_assign3.hpp>
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#include <boost/qvm/gen/mat_assign4.hpp>
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namespace boost { namespace qvm {
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namespace
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qvm_detail
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{
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template <int M,int N>
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struct
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assign_mm_defined
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{
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static bool const value=false;
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};
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template <int I,int N>
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struct
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copy_matrix_elements
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{
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template <class A,class B>
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static
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BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
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typename enable_if_c<
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mat_write_element_ref<A>::value,
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void>::type
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f( A & a, B const & b )
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{
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mat_traits<A>::template write_element<I/mat_traits<A>::cols,I%mat_traits<A>::cols>(a) =
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mat_traits<B>::template read_element<I/mat_traits<B>::cols,I%mat_traits<B>::cols>(b);
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copy_matrix_elements<I+1,N>::f(a,b);
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}
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template <class A,class B>
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static
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BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
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typename enable_if_c<
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!mat_write_element_ref<A>::value,
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void>::type
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f( A & a, B const & b )
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{
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mat_traits<A>::template write_element<I/mat_traits<A>::cols,I%mat_traits<A>::cols>(a,
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mat_traits<B>::template read_element<I/mat_traits<B>::cols,I%mat_traits<B>::cols>(b));
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copy_matrix_elements<I+1,N>::f(a,b);
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}
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};
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template <int N>
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struct
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copy_matrix_elements<N,N>
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{
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template <class A,class B>
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static
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BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
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void
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f( A &, B const & )
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{
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}
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};
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}
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template <class A,class B>
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BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_TRIVIAL
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typename enable_if_c<
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is_mat<A>::value && is_mat<B>::value &&
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mat_traits<A>::rows==mat_traits<B>::rows &&
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mat_traits<A>::cols==mat_traits<B>::cols &&
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!qvm_detail::assign_mm_defined<mat_traits<A>::rows,mat_traits<A>::cols>::value,
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A &>::type
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assign( A & a, B const & b )
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{
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qvm_detail::copy_matrix_elements<0,mat_traits<A>::rows*mat_traits<A>::cols>::f(a,b);
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return a;
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}
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} }
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#endif
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