1
2// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
3// Use, modification and distribution are subject to the Boost Software License,
4// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt).
6//
7// See http://www.boost.org/libs/type_traits for most recent version including documentation.
8
9#ifndef BOOST_TT_IS_SCALAR_HPP_INCLUDED
10#define BOOST_TT_IS_SCALAR_HPP_INCLUDED
11
12#include <boost/type_traits/is_arithmetic.hpp>
13#include <boost/type_traits/is_enum.hpp>
14#include <boost/type_traits/is_pointer.hpp>
15#include <boost/type_traits/is_member_pointer.hpp>
16#include <boost/type_traits/detail/ice_or.hpp>
17#include <boost/config.hpp>
18
19// should be the last #include
20#include <boost/type_traits/detail/bool_trait_def.hpp>
21
22namespace boost {
23
24namespace detail {
25
26template <typename T>
27struct is_scalar_impl
28{
29 BOOST_STATIC_CONSTANT(bool, value =
30 (::boost::type_traits::ice_or<
31 ::boost::is_arithmetic<T>::value,
32 ::boost::is_enum<T>::value,
33 ::boost::is_pointer<T>::value,
34 ::boost::is_member_pointer<T>::value
35 >::value));
36};
37
38// these specializations are only really needed for compilers
39// without partial specialization support:
40template <> struct is_scalar_impl<void>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
41#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
42template <> struct is_scalar_impl<void const>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
43template <> struct is_scalar_impl<void volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
44template <> struct is_scalar_impl<void const volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
45#endif
46
47} // namespace detail
48
49BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_scalar,T,::boost::detail::is_scalar_impl<T>::value)
50
51} // namespace boost
52
53#include <boost/type_traits/detail/bool_trait_undef.hpp>
54
55#endif // BOOST_TT_IS_SCALAR_HPP_INCLUDED
56