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

129 lines
5.0 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_8AC84A2217C411E0A7AF3A1BDFD72085
#define UUID_8AC84A2217C411E0A7AF3A1BDFD72085
#include <boost/qvm/inline.hpp>
#include <boost/qvm/quat_traits.hpp>
#include <boost/qvm/deduce_vec.hpp>
#include <boost/qvm/static_assert.hpp>
#include <boost/qvm/enable_if.hpp>
namespace
boost
{
namespace
qvm
{
////////////////////////////////////////////////
namespace
qvm_detail
{
template <class Q>
struct
quat_v_
{
template <class R>
operator R() const
{
R r;
assign(r,*this);
return r;
}
private:
quat_v_( quat_v_ const & );
quat_v_ const & operator=( quat_v_ const & );
~quat_v_();
};
}
template <class V>
struct vec_traits;
template <class Q>
struct
vec_traits< qvm_detail::quat_v_<Q> >
{
typedef qvm_detail::quat_v_<Q> this_vector;
typedef typename quat_traits<Q>::scalar_type scalar_type;
static int const dim=3;
template <int I>
BOOST_QVM_INLINE_CRITICAL
static
scalar_type
read_element( this_vector const & q )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<dim);
return quat_traits<Q>::template read_element<I+1>( reinterpret_cast<Q const &>(q) );
}
template <int I>
BOOST_QVM_INLINE_CRITICAL
static
scalar_type &
write_element( this_vector & q )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<dim);
return quat_traits<Q>::template write_element<I+1>( reinterpret_cast<Q &>(q) );
}
};
template <class Q,int D>
struct
deduce_vec<qvm_detail::quat_v_<Q>,D>
{
typedef vec<typename quat_traits<Q>::scalar_type,D> type;
};
template <class Q,int D>
struct
deduce_vec2<qvm_detail::quat_v_<Q>,qvm_detail::quat_v_<Q>,D>
{
typedef vec<typename quat_traits<Q>::scalar_type,D> type;
};
template <class Q>
BOOST_QVM_INLINE_TRIVIAL
typename enable_if_c<
is_quat<Q>::value,
qvm_detail::quat_v_<Q> const &>::type
V( Q const & a )
{
return reinterpret_cast<qvm_detail::quat_v_<Q> const &>(a);
}
template <class Q>
BOOST_QVM_INLINE_TRIVIAL
typename enable_if_c<
is_quat<Q>::value,
qvm_detail::quat_v_<Q> &>::type
V( Q & a )
{
return reinterpret_cast<qvm_detail::quat_v_<Q> &>(a);
}
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type>::type S( Q const & a ) { return quat_traits<Q>::template read_element<0>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type>::type X( Q const & a ) { return quat_traits<Q>::template read_element<1>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type>::type Y( Q const & a ) { return quat_traits<Q>::template read_element<2>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type>::type Z( Q const & a ) { return quat_traits<Q>::template read_element<3>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type &>::type S( Q & a ) { return quat_traits<Q>::template write_element<0>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type &>::type X( Q & a ) { return quat_traits<Q>::template write_element<1>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type &>::type Y( Q & a ) { return quat_traits<Q>::template write_element<2>(a); }
template <class Q> BOOST_QVM_INLINE_TRIVIAL typename enable_if_c<is_quat<Q>::value,typename quat_traits<Q>::scalar_type &>::type Z( Q & a ) { return quat_traits<Q>::template write_element<3>(a); }
////////////////////////////////////////////////
}
}
#endif