100 lines
2.9 KiB
Plaintext
100 lines
2.9 KiB
Plaintext
|
/*=============================================================================
|
||
|
|
Copyright (c) 2006-2007 Tobias Schwinger
|
||
|
|
|
||
|
|
Use modification and distribution are subject to 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).
|
||
|
|
==============================================================================*/
|
||
|
|
|
||
|
|
#if !defined(BOOST_FUSION_FUNCTIONAL_INVOCATION_DETAIL_THAT_PTR_HPP_INCLUDED)
|
||
|
|
#define BOOST_FUSION_FUNCTIONAL_INVOCATION_DETAIL_THAT_PTR_HPP_INCLUDED
|
||
|
|
|
||
|
|
#include <boost/fusion/support/config.hpp>
|
||
|
|
#include <boost/get_pointer.hpp>
|
||
|
|
#include <boost/utility/addressof.hpp>
|
||
|
|
#include <boost/type_traits/remove_reference.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace fusion { namespace detail
|
||
|
|
{
|
||
|
|
template <typename Wanted>
|
||
|
|
struct that_ptr
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
typedef typename remove_reference<Wanted>::type pointee;
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static inline pointee * do_get_pointer(T &, pointee * x)
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
template <typename T>
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static inline pointee * do_get_pointer(T & x, void const *)
|
||
|
|
{
|
||
|
|
return get_pointer(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static inline pointee * get(pointee * x)
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static inline pointee * get(pointee & x)
|
||
|
|
{
|
||
|
|
return boost::addressof(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static inline pointee * get(T & x)
|
||
|
|
{
|
||
|
|
return do_get_pointer(x, boost::addressof(x));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename PtrOrSmartPtr> struct non_const_pointee;
|
||
|
|
|
||
|
|
#if defined(BOOST_MSVC) || (defined(__BORLANDC__) && !defined(BOOST_DISABLE_WIN32))
|
||
|
|
# define BOOST_FUSION_TRAIT_DECL __cdecl
|
||
|
|
#else
|
||
|
|
# define BOOST_FUSION_TRAIT_DECL /**/
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace adl_barrier
|
||
|
|
{
|
||
|
|
using boost::get_pointer;
|
||
|
|
void const * BOOST_FUSION_TRAIT_DECL get_pointer(...); // fallback
|
||
|
|
|
||
|
|
template< typename T> char const_tester(T *);
|
||
|
|
template< typename T> long const_tester(T const *);
|
||
|
|
|
||
|
|
template <typename Ptr>
|
||
|
|
struct non_const_pointee_impl
|
||
|
|
{
|
||
|
|
static Ptr & what;
|
||
|
|
|
||
|
|
static bool const value =
|
||
|
|
sizeof(const_tester(get_pointer(what))) == 1;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename PtrOrSmartPtr> struct non_const_pointee
|
||
|
|
: adl_barrier::non_const_pointee_impl<
|
||
|
|
typename remove_cv<
|
||
|
|
typename remove_reference<PtrOrSmartPtr>::type >::type >
|
||
|
|
{
|
||
|
|
typedef non_const_pointee type;
|
||
|
|
typedef bool value_type;
|
||
|
|
};
|
||
|
|
|
||
|
|
}}}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|