#ifndef LLVM_SUPPORT_TYPE_TRAITS_H
#define LLVM_SUPPORT_TYPE_TRAITS_H
#include <type_traits>
#include <utility>
#ifndef __has_feature
#define LLVM_DEFINED_HAS_FEATURE
#define __has_feature(x) 0
#endif
namespace llvm {
template <typename T>
struct isPodLike {
#if (__has_feature(is_trivially_copyable) && defined(_LIBCPP_VERSION)) || \
(defined(__GNUC__) && __GNUC__ >= 5)
static const bool value = std::is_trivially_copyable<T>::value;
#elif __has_feature(is_trivially_copyable)
static const bool value = __is_trivially_copyable(T);
#else
static const bool value = !std::is_class<T>::value;
#endif
};
template<typename T, typename U>
struct isPodLike<std::pair<T, U> > {
static const bool value = isPodLike<T>::value && isPodLike<U>::value;
};
template <typename T> class is_integral_or_enum {
typedef typename std::remove_reference<T>::type UnderlyingT;
public:
static const bool value =
!std::is_class<UnderlyingT>::value && !std::is_pointer<UnderlyingT>::value &&
!std::is_floating_point<UnderlyingT>::value &&
std::is_convertible<UnderlyingT, unsigned long long>::value;
};
template<typename T, typename Enable = void>
struct add_lvalue_reference_if_not_pointer { typedef T &type; };
template <typename T>
struct add_lvalue_reference_if_not_pointer<
T, typename std::enable_if<std::is_pointer<T>::value>::type> {
typedef T type;
};
template<typename T, typename Enable = void>
struct add_const_past_pointer { typedef const T type; };
template <typename T>
struct add_const_past_pointer<
T, typename std::enable_if<std::is_pointer<T>::value>::type> {
typedef const typename std::remove_pointer<T>::type *type;
};
}
#if __cplusplus >= 201402L
#define LLVM_IS_FINAL(Ty) std::is_final<Ty>()
#elif __has_feature(is_final) || LLVM_GNUC_PREREQ(4, 7, 0)
#define LLVM_IS_FINAL(Ty) __is_final(Ty)
#endif
#ifdef LLVM_DEFINED_HAS_FEATURE
#undef __has_feature
#endif
#endif