0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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#ifndef BOOST_QVM_VEC_HPP_INCLUDED
#define BOOST_QVM_VEC_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/vec_assign.hpp>
#include <boost/qvm/assert.hpp>
#include <boost/qvm/static_assert.hpp>
namespace boost { namespace qvm {
template <class T,int D>
struct
vec
{
T a[D];
template <class R
#if __cplusplus >= 201103L
, class = typename enable_if<is_vec<R> >::type
#endif
>
operator R() const
{
R r;
assign(r,*this);
return r;
}
};
template <class V>
struct vec_traits;
template <class T,int Dim>
struct
vec_traits< vec<T,Dim> >
{
typedef vec<T,Dim> this_vector;
typedef T scalar_type;
static int const dim=Dim;
template <int I>
static
BOOST_QVM_CONSTEXPR 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.a[I];
}
template <int I>
static
BOOST_QVM_CONSTEXPR 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.a[I];
}
static
BOOST_QVM_CONSTEXPR 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.a[i];
}
static
BOOST_QVM_CONSTEXPR 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.a[i];
}
};
} }
#endif
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