ecency-mobile/ios/Pods/boost-for-react-native/boost/qvm/mat_traits_array.hpp

119 lines
3.6 KiB
C++

//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_FA3ED0DCA17911DEA6BBA09955D89593
#define UUID_FA3ED0DCA17911DEA6BBA09955D89593
#include <boost/qvm/inline.hpp>
#include <boost/qvm/deduce_mat.hpp>
#include <boost/qvm/detail/remove_const.hpp>
#include <boost/qvm/assert.hpp>
namespace
boost
{
namespace
qvm
{
template <class T,int R,int CR,int C>
struct
mat_traits<T[R][CR][C]>
{
static int const rows=0;
static int const cols=0;
typedef void scalar_type;
};
template <class T,int Rows,int Cols>
struct
mat_traits<T[Rows][Cols]>
{
typedef T this_matrix[Rows][Cols];
typedef typename qvm_detail::remove_const<T>::type scalar_type;
static int const rows=Rows;
static int const cols=Cols;
template <int Row,int Col>
static
BOOST_QVM_INLINE_CRITICAL
scalar_type
read_element( this_matrix const & x )
{
BOOST_QVM_STATIC_ASSERT(Row>=0);
BOOST_QVM_STATIC_ASSERT(Row<Rows);
BOOST_QVM_STATIC_ASSERT(Col>=0);
BOOST_QVM_STATIC_ASSERT(Col<Cols);
return x[Row][Col];
}
template <int Row,int Col>
static
BOOST_QVM_INLINE_CRITICAL
scalar_type &
write_element( this_matrix & x )
{
BOOST_QVM_STATIC_ASSERT(Row>=0);
BOOST_QVM_STATIC_ASSERT(Row<Rows);
BOOST_QVM_STATIC_ASSERT(Col>=0);
BOOST_QVM_STATIC_ASSERT(Col<Cols);
return x[Row][Col];
}
static
BOOST_QVM_INLINE_CRITICAL
scalar_type
read_element_idx( int row, int col, this_matrix const & x )
{
BOOST_QVM_ASSERT(row>=0);
BOOST_QVM_ASSERT(row<Rows);
BOOST_QVM_ASSERT(col>=0);
BOOST_QVM_ASSERT(col<Cols);
return x[row][col];
}
static
BOOST_QVM_INLINE_CRITICAL
scalar_type &
write_element_idx( int row, int col, this_matrix & x )
{
BOOST_QVM_ASSERT(row>=0);
BOOST_QVM_ASSERT(row<Rows);
BOOST_QVM_ASSERT(col>=0);
BOOST_QVM_ASSERT(col<Cols);
return x[row][col];
}
};
template <class T,int Rows,int Cols,int R,int C>
struct
deduce_mat<T[Rows][Cols],R,C>
{
typedef mat<T,R,C> type;
};
template <class T,int Rows,int Cols,int R,int C>
struct
deduce_mat<T const[Rows][Cols],R,C>
{
typedef mat<T,R,C> type;
};
template <class T1,class T2,int Rows,int Cols,int R,int C>
struct
deduce_mat2<T1[Rows][Cols],T2[Rows][Cols],R,C>
{
typedef mat<typename deduce_scalar<T1,T2>::type,R,C> type;
};
template <int Rows,int Cols,class T>
T (&ptr_mref( T * ptr ))[Rows][Cols]
{
return *reinterpret_cast<T (*)[Rows][Cols]>(ptr);
}
}
}
#endif