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_POD_HPP_INCLUDED |
10 | #define BOOST_TT_IS_POD_HPP_INCLUDED |
11 | |
12 | #include <boost/type_traits/detail/config.hpp> |
13 | #include <boost/type_traits/is_void.hpp> |
14 | #include <boost/type_traits/is_scalar.hpp> |
15 | #include <boost/type_traits/intrinsics.hpp> |
16 | |
17 | #ifdef __SUNPRO_CC |
18 | #include <boost/type_traits/is_function.hpp> |
19 | #endif |
20 | |
21 | #include <cstddef> |
22 | |
23 | #ifndef BOOST_IS_POD |
24 | #define BOOST_INTERNAL_IS_POD(T) false |
25 | #else |
26 | #define BOOST_INTERNAL_IS_POD(T) BOOST_IS_POD(T) |
27 | #endif |
28 | |
29 | namespace boost { |
30 | |
31 | // forward declaration, needed by 'is_pod_array_helper' template below |
32 | template< typename T > struct is_POD; |
33 | |
34 | template <typename T> struct is_pod |
35 | : public integral_constant<bool, ::boost::is_scalar<T>::value || ::boost::is_void<T>::value || BOOST_INTERNAL_IS_POD(T)> |
36 | {}; |
37 | |
38 | #if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS) |
39 | template <typename T, std::size_t sz> struct is_pod<T[sz]> : public is_pod<T>{}; |
40 | #endif |
41 | |
42 | |
43 | // the following help compilers without partial specialization support: |
44 | template<> struct is_pod<void> : public true_type{}; |
45 | |
46 | #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS |
47 | template<> struct is_pod<void const> : public true_type{}; |
48 | template<> struct is_pod<void const volatile> : public true_type{}; |
49 | template<> struct is_pod<void volatile> : public true_type{}; |
50 | #endif |
51 | |
52 | template<class T> struct is_POD : public is_pod<T>{}; |
53 | |
54 | } // namespace boost |
55 | |
56 | #undef BOOST_INTERNAL_IS_POD |
57 | |
58 | #endif // BOOST_TT_IS_POD_HPP_INCLUDED |
59 |