| // (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 class type (and not a 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_MOVE_CONSTRUCTOR(T) should evaluate to true if T(boost::move(t)) <==> memcpy |
| // BOOST_HAS_TRIVIAL_ASSIGN(T) should evaluate to true if t = u <==> memcpy |
| // BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) should evaluate to true if t = boost::move(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. |
| // |
| // 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 (and not a union) |
| // 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(BOOST_MSVC_FULL_VER) && (BOOST_MSVC_FULL_VER >=140050215))\ |
| || (defined(BOOST_INTEL) && defined(_MSC_VER) && (_MSC_VER >= 1500)) |
| # include <boost/type_traits/is_same.hpp> |
| # include <boost/type_traits/is_function.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)|| ( ::boost::is_pod<T>::value && !::boost::is_volatile<T>::value)) |
| # define BOOST_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) || ( ::boost::is_pod<T>::value && ! ::boost::is_const<T>::value && !::boost::is_volatile<T>::value)) |
| # define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) (__has_trivial_destructor(T) || ::boost::is_pod<T>::value) |
| # define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) (__has_nothrow_constructor(T) || ::boost::has_trivial_constructor<T>::value) |
| # define BOOST_HAS_NOTHROW_COPY(T) (__has_nothrow_copy(T) || ::boost::has_trivial_copy<T>::value) |
| # define BOOST_HAS_NOTHROW_ASSIGN(T) (__has_nothrow_assign(T) || ::boost::has_trivial_assign<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_CONVERTIBLE(T,U) ((__is_convertible_to(T,U) || (is_same<T,U>::value && !is_function<U>::value)) && !__is_abstract(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) |
| |
| # if defined(_MSC_VER) && (_MSC_VER >= 1700) |
| # define BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T) ((__has_trivial_move_constructor(T) || __is_pod(T)) && !::boost::is_volatile<T>::value && !::boost::is_reference<T>::value) |
| # define BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) ((__has_trivial_move_assign(T) || __is_pod(T)) && ! ::boost::is_const<T>::value && !::boost::is_volatile<T>::value && !::boost::is_reference<T>::value) |
| # endif |
| |
| # 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(BOOST_CLANG) && defined(__has_feature) |
| # include <cstddef> |
| # include <boost/type_traits/is_same.hpp> |
| # include <boost/type_traits/is_reference.hpp> |
| # include <boost/type_traits/is_volatile.hpp> |
| |
| # if __has_feature(is_union) |
| # define BOOST_IS_UNION(T) __is_union(T) |
| # endif |
| # if (!defined(__GLIBCXX__) || (__GLIBCXX__ >= 20080306 && __GLIBCXX__ != 20080519)) && __has_feature(is_pod) |
| # define BOOST_IS_POD(T) __is_pod(T) |
| # endif |
| # if (!defined(__GLIBCXX__) || (__GLIBCXX__ >= 20080306 && __GLIBCXX__ != 20080519)) && __has_feature(is_empty) |
| # define BOOST_IS_EMPTY(T) __is_empty(T) |
| # endif |
| # if __has_feature(has_trivial_constructor) |
| # define BOOST_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T) |
| # endif |
| # if __has_feature(has_trivial_copy) |
| # define BOOST_HAS_TRIVIAL_COPY(T) (__has_trivial_copy(T) && !is_reference<T>::value && !is_volatile<T>::value) |
| # endif |
| # if __has_feature(has_trivial_assign) |
| # define BOOST_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) && !is_volatile<T>::value) |
| # endif |
| # if __has_feature(has_trivial_destructor) |
| # define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T) |
| # endif |
| # if __has_feature(has_nothrow_constructor) |
| # define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) __has_nothrow_constructor(T) |
| # endif |
| # if __has_feature(has_nothrow_copy) |
| # define BOOST_HAS_NOTHROW_COPY(T) (__has_nothrow_copy(T) && !is_volatile<T>::value && !is_reference<T>::value) |
| # endif |
| # if __has_feature(has_nothrow_assign) |
| # define BOOST_HAS_NOTHROW_ASSIGN(T) (__has_nothrow_assign(T) && !is_volatile<T>::value) |
| # endif |
| # if __has_feature(has_virtual_destructor) |
| # define BOOST_HAS_VIRTUAL_DESTRUCTOR(T) __has_virtual_destructor(T) |
| # endif |
| # if __has_feature(is_abstract) |
| # define BOOST_IS_ABSTRACT(T) __is_abstract(T) |
| # endif |
| # if __has_feature(is_base_of) |
| # define BOOST_IS_BASE_OF(T,U) (__is_base_of(T,U) && !is_same<T,U>::value) |
| # endif |
| # if __has_feature(is_class) |
| # define BOOST_IS_CLASS(T) __is_class(T) |
| # endif |
| # if __has_feature(is_convertible_to) |
| # define BOOST_IS_CONVERTIBLE(T,U) __is_convertible_to(T,U) |
| # endif |
| # if __has_feature(is_enum) |
| # define BOOST_IS_ENUM(T) __is_enum(T) |
| # endif |
| # if __has_feature(is_polymorphic) |
| # define BOOST_IS_POLYMORPHIC(T) __is_polymorphic(T) |
| # endif |
| # if __has_feature(has_trivial_move_constructor) |
| # define BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T) __has_trivial_move_constructor(T) |
| # endif |
| # if __has_feature(has_trivial_move_assign) |
| # define BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) __has_trivial_move_assign(T) |
| # endif |
| # define BOOST_ALIGNMENT_OF(T) __alignof(T) |
| # if __has_feature(is_final) |
| # define BOOST_IS_FINAL(T) __is_final(T) |
| # endif |
| |
| # define BOOST_HAS_TYPE_TRAITS_INTRINSICS |
| #endif |
| |
| #if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3) && !defined(__GCCXML__))) && !defined(BOOST_CLANG) |
| # include <boost/type_traits/is_same.hpp> |
| # include <boost/type_traits/is_reference.hpp> |
| # include <boost/type_traits/is_volatile.hpp> |
| |
| #ifdef BOOST_INTEL |
| # define BOOST_INTEL_TT_OPTS || is_pod<T>::value |
| #else |
| # define BOOST_INTEL_TT_OPTS |
| #endif |
| |
| # 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) BOOST_INTEL_TT_OPTS) && ! ::boost::is_volatile<T>::value) |
| # define BOOST_HAS_TRIVIAL_COPY(T) ((__has_trivial_copy(T) BOOST_INTEL_TT_OPTS) && !is_reference<T>::value && ! ::boost::is_volatile<T>::value) |
| # define BOOST_HAS_TRIVIAL_ASSIGN(T) ((__has_trivial_assign(T) BOOST_INTEL_TT_OPTS) && ! ::boost::is_volatile<T>::value && ! ::boost::is_const<T>::value) |
| # define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) (__has_trivial_destructor(T) BOOST_INTEL_TT_OPTS) |
| # define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) (__has_nothrow_constructor(T) BOOST_INTEL_TT_OPTS) |
| # define BOOST_HAS_NOTHROW_COPY(T) ((__has_nothrow_copy(T) BOOST_INTEL_TT_OPTS) && !is_volatile<T>::value && !is_reference<T>::value) |
| # define BOOST_HAS_NOTHROW_ASSIGN(T) ((__has_nothrow_assign(T) BOOST_INTEL_TT_OPTS) && !is_volatile<T>::value && !is_const<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(__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 |
| # if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) |
| # define BOOST_IS_FINAL(T) __is_final(T) |
| # endif |
| |
| # define BOOST_HAS_TYPE_TRAITS_INTRINSICS |
| #endif |
| |
| #if defined(__ghs__) && (__GHS_VERSION_NUMBER >= 600) |
| # 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 && !is_volatile<T>::value) |
| # define BOOST_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) && !is_volatile<T>::value) |
| # 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) |
| # define BOOST_ALIGNMENT_OF(T) __alignof__(T) |
| # 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)) |
| # define BOOST_HAS_TRIVIAL_COPY(T) (__has_trivial_copy_constructor(T) && !is_volatile<T>::value && !is_reference<T>::value) |
| # define BOOST_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) && !is_volatile<T>::value) |
| # define BOOST_HAS_TRIVIAL_DESTRUCTOR(T) (__has_trivial_destructor(T)) |
| # define BOOST_HAS_NOTHROW_CONSTRUCTOR(T) (__has_nothrow_default_constructor(T)) |
| # define BOOST_HAS_NOTHROW_COPY(T) (__has_nothrow_copy_constructor(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_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 |
| |
| #endif // BOOST_TT_INTRINSICS_HPP_INCLUDED |
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