dbf9e800
 Hu Chunming
提交_GLIBCXX_USE_CX...
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#ifndef BOOST_QVM_QUAT_HPP_INCLUDED
#define BOOST_QVM_QUAT_HPP_INCLUDED
// Copyright 2008-2022 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)
#include <boost/qvm/detail/quat_assign.hpp>
#include <boost/qvm/assert.hpp>
#include <boost/qvm/static_assert.hpp>
namespace boost { namespace qvm {
template <class T>
struct
quat
{
T a[4];
template <class R
#if __cplusplus >= 201103L
, class = typename enable_if<is_quat<R> >::type
#endif
>
operator R() const
{
R r;
assign(r,*this);
return r;
}
};
template <class Q>
struct quat_traits;
template <class T>
struct
quat_traits< quat<T> >
{
typedef quat<T> this_quaternion;
typedef T scalar_type;
template <int I>
static
BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
scalar_type
read_element( this_quaternion const & x )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<4);
return x.a[I];
}
template <int I>
static
BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
scalar_type &
write_element( this_quaternion & x )
{
BOOST_QVM_STATIC_ASSERT(I>=0);
BOOST_QVM_STATIC_ASSERT(I<4);
return x.a[I];
}
};
} }
#endif
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