//  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.

//  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).

//

//  See http://www.boost.org/libs/type_traits for most recent version including documentation.

#ifndef BOOST_TT_INTRINSICS_HPP_INCLUDED

#define BOOST_TT_INTRINSICS_HPP_INCLUDED

#ifndef BOOST_TT_CONFIG_HPP_INCLUDED

#include <boost/type_traits/config.hpp>

#endif

//

// Helper macros for builtin compiler support.

// If your compiler has builtin support for any of the following

// traits concepts, then redefine the appropriate macros to pick

// up on the compiler support:

//

// (these should largely ignore cv-qualifiers)

// BOOST_IS_UNION(T) should evaluate to true if T is a union type

// BOOST_IS_POD(T) should evaluate to true if T is a POD type

// BOOST_IS_EMPTY(T) should evaluate to true if T is an empty struct or union

// BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) should evaluate to true if "T x;" has no effect

// BOOST_HAS_TRIVIAL_COPY(T) should evaluate to true if T(t) <==> memcpy

// BOOST_HAS_TRIVIAL_ASSIGN(T) should evaluate to true if t = u <==> memcpy

// BOOST_HAS_TRIVIAL_DESTRUCTOR(T) should evaluate to true if ~T() has no effect

// BOOST_HAS_NOTHROW_CONSTRUCTOR(T) should evaluate to true if "T x;" can not throw

// BOOST_HAS_NOTHROW_COPY(T) should evaluate to true if T(t) can not throw

// BOOST_HAS_NOTHROW_ASSIGN(T) should evaluate to true if t = u can not throw

// BOOST_HAS_VIRTUAL_DESTRUCTOR(T) should evaluate to true T has a virtual destructor

//

// The following can also be defined: when detected our implementation is greatly simplified.

// Note that unlike the macros above these do not have default definitions, so we can use

// #ifdef MACRONAME to detect when these are available.

//

// BOOST_IS_ABSTRACT(T) true if T is an abstract type

// BOOST_IS_BASE_OF(T,U) true if T is a base class of U

// BOOST_IS_CLASS(T) true if T is a class type

// BOOST_IS_CONVERTIBLE(T,U) true if T is convertible to U

// BOOST_IS_ENUM(T) true is T is an enum

// BOOST_IS_POLYMORPHIC(T) true if T is a polymorphic type

// BOOST_ALIGNMENT_OF(T) should evaluate to the alignment requirements of type T.

#ifdef BOOST_HAS_SGI_TYPE_TRAITS

    // Hook into SGI's __type_traits class, this will pick up user supplied

    // specializations as well as SGI - compiler supplied specializations.

#   include <boost/type_traits/is_same.hpp>

#   ifdef __NetBSD__

      // There are two different versions of type_traits.h on NetBSD on Spark

      // use an implicit include via algorithm instead, to make sure we get

      // the same version as the std lib:

#     include <algorithm>

#   else

#    include <type_traits.h>

#   endif

#   define BOOST_IS_POD(T) ::boost::is_same< typename ::__type_traits<T>::is_POD_type, ::__true_type>::value

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) ::boost::is_same< typename ::__type_traits<T>::has_trivial_default_constructor, ::__true_type>::value

#   define BOOST_HAS_TRIVIAL_COPY(T) ::boost::is_same< typename ::__type_traits<T>::has_trivial_copy_constructor, ::__true_type>::value

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) ::boost::is_same< typename ::__type_traits<T>::has_trivial_assignment_operator, ::__true_type>::value

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) ::boost::is_same< typename ::__type_traits<T>::has_trivial_destructor, ::__true_type>::value

#   ifdef __sgi

#      define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#   endif

#endif

#if defined(__MSL_CPP__) && (__MSL_CPP__ >= 0x8000)

    // Metrowerks compiler is acquiring intrinsic type traits support

    // post version 8.  We hook into the published interface to pick up

    // user defined specializations as well as compiler intrinsics as 

    // and when they become available:

#   include <msl_utility>

#   define BOOST_IS_UNION(T) BOOST_STD_EXTENSION_NAMESPACE::is_union<T>::value

#   define BOOST_IS_POD(T) BOOST_STD_EXTENSION_NAMESPACE::is_POD<T>::value

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_default_ctor<T>::value

#   define BOOST_HAS_TRIVIAL_COPY(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_copy_ctor<T>::value

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_assignment<T>::value

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_dtor<T>::value

#   define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#endif

#if defined(BOOST_MSVC) && defined(_MSC_FULL_VER) && (_MSC_FULL_VER >=140050215)

#   include <boost/type_traits/is_same.hpp>

#   define BOOST_IS_UNION(T) __is_union(T)

#   define BOOST_IS_POD(T) (__is_pod(T) && __has_trivial_constructor(T))

#   define BOOST_IS_EMPTY(T) __is_empty(T)

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T)

#   define BOOST_HAS_TRIVIAL_COPY(T) __has_trivial_copy(T)

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) __has_trivial_assign(T)

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)

#   define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) __has_nothrow_constructor(T)

#   define BOOST_HAS_NOTHROW_COPY(T) __has_nothrow_copy(T)

#   define BOOST_HAS_NOTHROW_ASSIGN(T) __has_nothrow_assign(T)

#   define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) __has_virtual_destructor(T)

#   define BOOST_IS_ABSTRACT(T) __is_abstract(T)

#   define BOOST_IS_BASE_OF(T,U) (__is_base_of(T,U) && !is_same<T,U>::value)

#   define BOOST_IS_CLASS(T) __is_class(T)

//  This one doesn't quite always do the right thing:

//  #   define BOOST_IS_CONVERTIBLE(T,U) __is_convertible_to(T,U)

#   define BOOST_IS_ENUM(T) __is_enum(T)

//  This one doesn't quite always do the right thing:

//  #   define BOOST_IS_POLYMORPHIC(T) __is_polymorphic(T)

//  This one fails if the default alignment has been changed with /Zp:

//  #   define BOOST_ALIGNMENT_OF(T) __alignof(T)

#   define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#endif

#if defined(__DMC__) && (__DMC__ >= 0x848)

// For Digital Mars C++, www.digitalmars.com

#   define BOOST_IS_UNION(T) (__typeinfo(T) & 0x400)

#   define BOOST_IS_POD(T) (__typeinfo(T) & 0x800)

#   define BOOST_IS_EMPTY(T) (__typeinfo(T) & 0x1000)

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) (__typeinfo(T) & 0x10)

#   define BOOST_HAS_TRIVIAL_COPY(T) (__typeinfo(T) & 0x20)

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) (__typeinfo(T) & 0x40)

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) (__typeinfo(T) & 0x8)

#   define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) (__typeinfo(T) & 0x80)

#   define BOOST_HAS_NOTHROW_COPY(T) (__typeinfo(T) & 0x100)

#   define BOOST_HAS_NOTHROW_ASSIGN(T) (__typeinfo(T) & 0x200)

#   define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) (__typeinfo(T) & 0x4)

#   define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#endif

#if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3) && !defined(__GCCXML__)))

#   include <boost/type_traits/is_same.hpp>

#   include <boost/type_traits/is_reference.hpp>

#   include <boost/type_traits/is_volatile.hpp>

#   define BOOST_IS_UNION(T) __is_union(T)

#   define BOOST_IS_POD(T) __is_pod(T)

#   define BOOST_IS_EMPTY(T) __is_empty(T)

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T)

#   define BOOST_HAS_TRIVIAL_COPY(T) (__has_trivial_copy(T) && !is_reference<T>::value)

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) __has_trivial_assign(T)

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)

#   define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) __has_nothrow_constructor(T)

#   define BOOST_HAS_NOTHROW_COPY(T) (__has_nothrow_copy(T) && !is_volatile<T>::value && !is_reference<T>::value)

#   define BOOST_HAS_NOTHROW_ASSIGN(T) (__has_nothrow_assign(T) && !is_volatile<T>::value)

#   define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) __has_virtual_destructor(T)

#   define BOOST_IS_ABSTRACT(T) __is_abstract(T)

#   define BOOST_IS_BASE_OF(T,U) (__is_base_of(T,U) && !is_same<T,U>::value)

#   define BOOST_IS_CLASS(T) __is_class(T)

#   define BOOST_IS_ENUM(T) __is_enum(T)

#   define BOOST_IS_POLYMORPHIC(T) __is_polymorphic(T)

#   if !defined(unix) || defined(__LP64__)

      // GCC sometimes lies about alignment requirements

      // of type double on 32-bit unix platforms, use the

      // old implementation instead in that case:

#     define BOOST_ALIGNMENT_OF(T) __alignof__(T)

#   endif

#   define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#endif

# if defined(__CODEGEARC__)

#   include <boost/type_traits/is_same.hpp>

#   include <boost/type_traits/is_reference.hpp>

#   include <boost/type_traits/is_volatile.hpp>

#   include <boost/type_traits/is_void.hpp>

#   define BOOST_IS_UNION(T) __is_union(T)

#   define BOOST_IS_POD(T) __is_pod(T)

#   define BOOST_IS_EMPTY(T) __is_empty(T)

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) (__has_trivial_default_constructor(T) || is_void<T>::value)

#   define BOOST_HAS_TRIVIAL_COPY(T) (__has_trivial_copy_constructor(T) && !is_volatile<T>::value && !is_reference<T>::value || is_void<T>::value)

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) && !is_volatile<T>::value || is_void<T>::value)

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) (__has_trivial_destructor(T) || is_void<T>::value)

#   define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) (__has_nothrow_default_constructor(T) || is_void<T>::value)

#   define BOOST_HAS_NOTHROW_COPY(T) (__has_nothrow_copy_constructor(T) && !is_volatile<T>::value && !is_reference<T>::value || is_void<T>::value)

#   define BOOST_HAS_NOTHROW_ASSIGN(T) (__has_nothrow_assign(T) && !is_volatile<T>::value || is_void<T>::value)

#   define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) __has_virtual_destructor(T)

#   define BOOST_IS_ABSTRACT(T) __is_abstract(T)

#   define BOOST_IS_BASE_OF(T,U) (__is_base_of(T,U) && !is_void<T>::value && !is_void<U>::value)

#   define BOOST_IS_CLASS(T) __is_class(T)

#   define BOOST_IS_CONVERTIBLE(T,U) (__is_convertible(T,U) || is_void<U>::value)

#   define BOOST_IS_ENUM(T) __is_enum(T)

#   define BOOST_IS_POLYMORPHIC(T) __is_polymorphic(T)

#   define BOOST_ALIGNMENT_OF(T) alignof(T)

#   define BOOST_HAS_TYPE_TRAITS_INTRINSICS

#endif

#ifndef BOOST_IS_UNION

#   define BOOST_IS_UNION(T) false

#endif

#ifndef BOOST_IS_POD

#   define BOOST_IS_POD(T) false

#endif

#ifndef BOOST_IS_EMPTY

#   define BOOST_IS_EMPTY(T) false

#endif

#ifndef BOOST_HAS_TRIVIAL_CONSTRUCTOR

#   define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) false

#endif

#ifndef BOOST_HAS_TRIVIAL_COPY

#   define BOOST_HAS_TRIVIAL_COPY(T) false

#endif

#ifndef BOOST_HAS_TRIVIAL_ASSIGN

#   define BOOST_HAS_TRIVIAL_ASSIGN(T) false

#endif

#ifndef BOOST_HAS_TRIVIAL_DESTRUCTOR

#   define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) false

#endif

#ifndef BOOST_HAS_NOTHROW_CONSTRUCTOR

#   define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) false

#endif

#ifndef BOOST_HAS_NOTHROW_COPY

#   define BOOST_HAS_NOTHROW_COPY(T) false

#endif

#ifndef BOOST_HAS_NOTHROW_ASSIGN

#   define BOOST_HAS_NOTHROW_ASSIGN(T) false

#endif

#ifndef BOOST_HAS_VIRTUAL_DESTRUCTOR

#   define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) false

#endif

#endif // BOOST_TT_INTRINSICS_HPP_INCLUDED