105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
#ifndef BOOST_QVM_VEC_TRAITS_ARRAY_HPP_INCLUDED
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#define BOOST_QVM_VEC_TRAITS_ARRAY_HPP_INCLUDED
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/// Copyright (c) 2008-2021 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/inline.hpp>
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#include <boost/qvm/deduce_vec.hpp>
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#include <boost/qvm/detail/remove_const.hpp>
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#include <boost/qvm/assert.hpp>
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namespace boost { namespace qvm {
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template <class T,int M,int N>
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struct
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vec_traits<T[M][N]>
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{
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static int const dim=0;
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typedef void scalar_type;
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};
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template <class T,int Dim>
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struct
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vec_traits<T[Dim]>
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{
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typedef T this_vector[Dim];
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typedef typename qvm_detail::remove_const<T>::type scalar_type;
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static int const dim=Dim;
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template <int I>
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static
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BOOST_QVM_INLINE_CRITICAL
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scalar_type
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read_element( this_vector const & x )
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{
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BOOST_QVM_STATIC_ASSERT(I>=0);
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BOOST_QVM_STATIC_ASSERT(I<Dim);
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return x[I];
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}
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template <int I>
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static
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BOOST_QVM_INLINE_CRITICAL
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scalar_type &
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write_element( this_vector & x )
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{
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BOOST_QVM_STATIC_ASSERT(I>=0);
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BOOST_QVM_STATIC_ASSERT(I<Dim);
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return x[I];
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}
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static
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BOOST_QVM_INLINE_CRITICAL
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scalar_type
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read_element_idx( int i, this_vector const & x )
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{
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BOOST_QVM_ASSERT(i>=0);
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BOOST_QVM_ASSERT(i<Dim);
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return x[i];
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}
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static
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BOOST_QVM_INLINE_CRITICAL
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scalar_type &
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write_element_idx( int i, this_vector & x )
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{
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BOOST_QVM_ASSERT(i>=0);
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BOOST_QVM_ASSERT(i<Dim);
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return x[i];
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}
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};
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template <class T,int Dim,int D>
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struct
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deduce_vec<T[Dim],D>
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{
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typedef vec<T,D> type;
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};
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template <class T,int Dim,int D>
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struct
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deduce_vec<T const[Dim],D>
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{
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typedef vec<T,D> type;
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};
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template <class T1,class T2,int Dim,int D>
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struct
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deduce_vec2<T1[Dim],T2[Dim],D>
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{
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typedef vec<typename deduce_scalar<T1,T2>::type,D> type;
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};
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template <int Dim,class T>
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T (&ptr_vref( T * ptr ))[Dim]
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{
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return *reinterpret_cast<T (*)[Dim]>(ptr);
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}
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} }
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#endif
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