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

109 lines
2.9 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_DEC6035EA1C211DEA5E8ECB856D89593
#define UUID_DEC6035EA1C211DEA5E8ECB856D89593
#include <boost/qvm/inline.hpp>
#include <boost/qvm/deduce_vec.hpp>
#include <boost/qvm/detail/remove_const.hpp>
#include <boost/qvm/assert.hpp>
namespace
boost
{
namespace
qvm
{
template <class T,int M,int N>
struct
vec_traits<T[M][N]>
{
static int const dim=0;
typedef void scalar_type;
};
template <class T,int Dim>
struct
vec_traits<T[Dim]>
{
typedef T this_vector[Dim];
typedef typename qvm_detail::remove_const<T>::type scalar_type;
static int const dim=Dim;
template <int I>
static
BOOST_QVM_INLINE_CRITICAL
scalar_type
read_element( this_vector const & x )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<Dim);
return x[I];
}
template <int I>
static
BOOST_QVM_INLINE_CRITICAL
scalar_type &
write_element( this_vector & x )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<Dim);
return x[I];
}
static
BOOST_QVM_INLINE_CRITICAL
scalar_type
read_element_idx( int i, this_vector const & x )
{
BOOST_QVM_ASSERT(i>=0);
BOOST_QVM_ASSERT(i<Dim);
return x[i];
}
static
BOOST_QVM_INLINE_CRITICAL
scalar_type &
write_element_idx( int i, this_vector & x )
{
BOOST_QVM_ASSERT(i>=0);
BOOST_QVM_ASSERT(i<Dim);
return x[i];
}
};
template <class T,int Dim,int D>
struct
deduce_vec<T[Dim],D>
{
typedef vec<T,D> type;
};
template <class T,int Dim,int D>
struct
deduce_vec<T const[Dim],D>
{
typedef vec<T,D> type;
};
template <class T1,class T2,int Dim,int D>
struct
deduce_vec2<T1[Dim],T2[Dim],D>
{
typedef vec<typename deduce_scalar<T1,T2>::type,D> type;
};
template <int Dim,class T>
T (&ptr_vref( T * ptr ))[Dim]
{
return *reinterpret_cast<T (*)[Dim]>(ptr);
}
}
}
#endif