#ifndef LLVM_SUPPORT_TYPE_TRAITS_H
#define LLVM_SUPPORT_TYPE_TRAITS_H
#include "llvm/Support/DataTypes.h"
#include <cstddef>
#include <utility>
#ifndef __has_feature
#define LLVM_DEFINED_HAS_FEATURE
#define __has_feature(x) 0
#endif
namespace llvm {
namespace dont_use
{
template<typename T> char is_class_helper(void(T::*)());
template<typename T> double is_class_helper(...);
}
template <typename T>
struct is_class
{
public:
static const bool value =
sizeof(char) == sizeof(dont_use::is_class_helper<T>(0));
};
template <typename T>
struct isPodLike {
#if __has_feature(is_trivially_copyable)
static const bool value = __is_trivially_copyable(T);
#else
static const bool value = !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 <class T, T v>
struct integral_constant {
typedef T value_type;
static const value_type value = v;
typedef integral_constant<T,v> type;
operator value_type() { return value; }
};
typedef integral_constant<bool, true> true_type;
typedef integral_constant<bool, false> false_type;
template<typename T, typename U> struct is_same : public false_type {};
template<typename T> struct is_same<T, T> : public true_type {};
template <typename T> struct remove_const { typedef T type; };
template <typename T> struct remove_const<const T> { typedef T type; };
template <typename T> struct remove_volatile { typedef T type; };
template <typename T> struct remove_volatile<volatile T> { typedef T type; };
template <typename T> struct remove_cv {
typedef typename remove_const<typename remove_volatile<T>::type>::type type;
};
template <typename T> struct is_integral_impl : false_type {};
template <> struct is_integral_impl< bool> : true_type {};
template <> struct is_integral_impl< char> : true_type {};
template <> struct is_integral_impl< signed char> : true_type {};
template <> struct is_integral_impl<unsigned char> : true_type {};
template <> struct is_integral_impl< wchar_t> : true_type {};
template <> struct is_integral_impl< short> : true_type {};
template <> struct is_integral_impl<unsigned short> : true_type {};
template <> struct is_integral_impl< int> : true_type {};
template <> struct is_integral_impl<unsigned int> : true_type {};
template <> struct is_integral_impl< long> : true_type {};
template <> struct is_integral_impl<unsigned long> : true_type {};
template <> struct is_integral_impl< long long> : true_type {};
template <> struct is_integral_impl<unsigned long long> : true_type {};
template <typename T>
struct is_integral : is_integral_impl<T> {};
template <typename T> struct remove_reference { typedef T type; };
template <typename T> struct remove_reference<T&> { typedef T type; };
template <typename T> struct is_pointer : false_type {};
template <typename T> struct is_pointer<T*> : true_type {};
template <typename T> struct is_pointer<T* const> : true_type {};
template <typename T> struct is_pointer<T* volatile> : true_type {};
template <typename T> struct is_pointer<T* const volatile> : true_type {};
template <typename T> struct is_reference : false_type {};
template <typename T> struct is_reference<T&> : true_type {};
template <typename T> class is_integral_or_enum {
static double check_int_convertible(unsigned long long);
static char check_int_convertible(...);
typedef typename remove_reference<T>::type UnderlyingT;
static UnderlyingT &nonce_instance;
public:
static const bool
value = (!is_class<UnderlyingT>::value && !is_pointer<UnderlyingT>::value &&
!is_same<UnderlyingT, float>::value &&
!is_same<UnderlyingT, double>::value &&
sizeof(char) != sizeof(check_int_convertible(nonce_instance)));
};
template<bool Cond, typename T = void>
struct enable_if_c {
typedef T type;
};
template<typename T> struct enable_if_c<false, T> { };
template<typename Cond, typename T = void>
struct enable_if : public enable_if_c<Cond::value, T> { };
namespace dont_use {
template<typename Base> char base_of_helper(const volatile Base*);
template<typename Base> double base_of_helper(...);
}
template<typename Base, typename Derived>
struct is_base_of {
static const bool value
= is_class<Base>::value && is_class<Derived>::value &&
sizeof(char) == sizeof(dont_use::base_of_helper<Base>((Derived*)0));
};
template <typename T> struct remove_pointer { typedef T type; };
template <typename T> struct remove_pointer<T*> { typedef T type; };
template <typename T> struct remove_pointer<T*const> { typedef T type; };
template <typename T> struct remove_pointer<T*volatile> { typedef T type; };
template <typename T> struct remove_pointer<T*const volatile> {
typedef T type; };
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 enable_if<is_pointer<T> >::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 enable_if<is_pointer<T> >::type> {
typedef const typename remove_pointer<T>::type *type;
};
template <bool, typename T, typename F>
struct conditional { typedef T type; };
template <typename T, typename F>
struct conditional<false, T, F> { typedef F type; };
}
#ifdef LLVM_DEFINED_HAS_FEATURE
#undef __has_feature
#endif
#endif