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Added is_enum, is_empty

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This commit is contained in:
Ion Gaztañaga
2015-01-18 11:18:12 +01:00
parent 63d45d2fdd
commit 4ef98d900b
1 changed files with 100 additions and 15 deletions
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115
include/boost/move/detail/type_traits.hpp
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@@ -70,6 +70,7 @@
// user defined specializations as well as compiler intrinsics as
// and when they become available:
# include <msl_utility>
# define BOOST_MOVE_IS_UNION(T) BOOST_STD_EXTENSION_NAMESPACE::is_union<T>::value
# define BOOST_MOVE_IS_POD(T) BOOST_STD_EXTENSION_NAMESPACE::is_POD<T>::value
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_default_ctor<T>::value
# define BOOST_MOVE_HAS_TRIVIAL_COPY(T) BOOST_STD_EXTENSION_NAMESPACE::has_trivial_copy_ctor<T>::value
@@ -79,7 +80,9 @@
#if (defined(BOOST_MSVC) && defined(BOOST_MSVC_FULL_VER) && (BOOST_MSVC_FULL_VER >=140050215))\
|| (defined(BOOST_INTEL) && defined(_MSC_VER) && (_MSC_VER >= 1500))
# define BOOST_MOVE_IS_UNION(T) __is_union(T)
# define BOOST_MOVE_IS_POD(T) (__is_pod(T) && __has_trivial_constructor(T))
# define BOOST_MOVE_IS_EMPTY(T) __is_empty(T)
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T)
# define BOOST_MOVE_HAS_TRIVIAL_COPY(T) (__has_trivial_copy(T)|| ::boost::move_detail::is_pod<T>::value)
# define BOOST_MOVE_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T) || ::boost::move_detail::is_pod<T>::value)
@@ -97,9 +100,15 @@
#if defined(BOOST_CLANG) && defined(__has_feature)
# if __has_feature(is_union)
# define BOOST_MOVE_IS_UNION(T) __is_union(T)
# endif
# if (!defined(__GLIBCXX__) || (__GLIBCXX__ >= 20080306 && __GLIBCXX__ != 20080519)) && __has_feature(is_pod)
# define BOOST_MOVE_IS_POD(T) __is_pod(T)
# endif
# if (!defined(__GLIBCXX__) || (__GLIBCXX__ >= 20080306 && __GLIBCXX__ != 20080519)) && __has_feature(is_empty)
# define BOOST_MOVE_IS_EMPTY(T) __is_empty(T)
# endif
# if __has_feature(has_trivial_constructor)
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T)
# endif
@@ -143,7 +152,9 @@
# define BOOST_MOVE_INTEL_TT_OPTS
#endif
# define BOOST_MOVE_IS_UNION(T) __is_union(T)
# define BOOST_MOVE_IS_POD(T) __is_pod(T)
# define BOOST_MOVE_IS_EMPTY(T) __is_empty(T)
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) ((__has_trivial_constructor(T) BOOST_MOVE_INTEL_TT_OPTS))
# define BOOST_MOVE_HAS_TRIVIAL_COPY(T) ((__has_trivial_copy(T) BOOST_MOVE_INTEL_TT_OPTS))
# define BOOST_MOVE_HAS_TRIVIAL_ASSIGN(T) ((__has_trivial_assign(T) BOOST_MOVE_INTEL_TT_OPTS) )
@@ -163,7 +174,9 @@
#if defined(__ghs__) && (__GHS_VERSION_NUMBER >= 600)
# define BOOST_MOVE_IS_UNION(T) __is_union(T)
# define BOOST_MOVE_IS_POD(T) __is_pod(T)
# define BOOST_MOVE_IS_EMPTY(T) __is_empty(T)
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) __has_trivial_constructor(T)
# define BOOST_MOVE_HAS_TRIVIAL_COPY(T) (__has_trivial_copy(T))
# define BOOST_MOVE_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T))
@@ -177,7 +190,9 @@
#endif
# if defined(__CODEGEARC__)
# define BOOST_MOVE_IS_UNION(T) __is_union(T)
# define BOOST_MOVE_IS_POD(T) __is_pod(T)
# define BOOST_MOVE_IS_EMPTY(T) __is_empty(T)
# define BOOST_MOVE_HAS_TRIVIAL_CONSTRUCTOR(T) (__has_trivial_default_constructor(T))
# define BOOST_MOVE_HAS_TRIVIAL_COPY(T) (__has_trivial_copy_constructor(T))
# define BOOST_MOVE_HAS_TRIVIAL_ASSIGN(T) (__has_trivial_assign(T))
@@ -192,6 +207,13 @@
#endif
//Fallback definitions
#ifdef BOOST_MOVE_IS_UNION
#define BOOST_MOVE_IS_UNION_IMPL(T) BOOST_MOVE_IS_UNION(T)
#else
#define BOOST_MOVE_IS_UNION_IMPL(T) false
#endif
#ifdef BOOST_MOVE_IS_POD
#define BOOST_MOVE_IS_POD_IMPL(T) BOOST_MOVE_IS_POD(T)
#else
@@ -199,6 +221,12 @@
(::boost::move_detail::is_scalar<T>::value || ::boost::move_detail::is_void<T>::value)
#endif
#ifdef BOOST_MOVE_IS_EMPTY
#define BOOST_MOVE_IS_EMPTY_IMPL(T) BOOST_MOVE_IS_EMPTY(T)
#else
#define BOOST_MOVE_IS_EMPTY_IMPL(T) ::boost::move_detail::is_empty_nonintrinsic<T>::value
#endif
#ifdef BOOST_MOVE_HAS_TRIVIAL_COPY
#define BOOST_MOVE_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(T) BOOST_MOVE_HAS_TRIVIAL_COPY(T)
#else
@@ -421,6 +449,21 @@ struct is_integral
: public is_integral_cv<typename remove_cv<T>::type>
{};
//////////////////////////////////////
// remove_all_extents
//////////////////////////////////////
template <class T>
struct remove_all_extents
{ typedef T type;};
template <class T>
struct remove_all_extents<T[]>
{ typedef typename remove_all_extents<T>::type type; };
template <class T, size_t N>
struct remove_all_extents<T[N]>
{ typedef typename remove_all_extents<T>::type type;};
//////////////////////////
// is_scalar
//////////////////////////
@@ -531,6 +574,28 @@ struct is_function
: is_function_impl<T>
{};
//////////////////////////////////////
// is_union
//////////////////////////////////////
template<class T>
struct is_union_noextents_cv
{ static const bool value = BOOST_MOVE_IS_UNION_IMPL(T); };
template<class T>
struct is_union
: is_union_noextents_cv<typename remove_cv<typename remove_all_extents<T>::type>::type>
{};
//////////////////////////////////////
// is_class
//////////////////////////////////////
template <class T>
struct is_class
{
static const bool value = is_class_or_union<T>::value && ! is_union<T>::value;
};
//////////////////////////////////////
// is_arithmetic
//////////////////////////////////////
@@ -584,21 +649,6 @@ template <class T>
struct is_enum
{ static const bool value = BOOST_MOVE_IS_ENUM_IMPL(T); };
//////////////////////////////////////
// remove_all_extents
//////////////////////////////////////
template <class T>
struct remove_all_extents
{ typedef T type;};
template <class T>
struct remove_all_extents<T[]>
{ typedef typename remove_all_extents<T>::type type; };
template <class T, size_t N>
struct remove_all_extents<T[N]>
{ typedef typename remove_all_extents<T>::type type;};
//////////////////////////////////////
// is_pod
//////////////////////////////////////
@@ -611,6 +661,41 @@ struct is_pod
: is_pod_noextents_cv<typename remove_cv<typename remove_all_extents<T>::type>::type>
{};
//////////////////////////////////////
// is_empty
//////////////////////////////////////
#if !defined(BOOST_MOVE_IS_EMPTY)
template <typename T>
struct empty_helper_t1 : public T
{
empty_helper_t1(); // hh compiler bug workaround
int i[256];
private:
empty_helper_t1(const empty_helper_t1&);
empty_helper_t1& operator=(const empty_helper_t1&);
};
struct empty_helper_t2 { int i[256]; };
template <typename T, bool IsClass = false>
struct is_empty_nonintrinsic
{
static const bool value = false;
};
template <typename T>
struct is_empty_nonintrinsic<T, true>
{
static const bool value = sizeof(empty_helper_t1<T>) == sizeof(empty_helper_t2);
};
#endif
template <class T>
struct is_empty
{ static const bool value = BOOST_MOVE_IS_EMPTY_IMPL(T); };
//////////////////////////////////////
// is_copy_constructible
//////////////////////////////////////