internal.h

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#pragma once
 
#include <utility>
 
#ifndef __WRL_ASSERT__
#    ifdef __WRL_CONFIGURATION_LEGACY__
// Take NT_ASSERT for windows build
#        include <ntassert.h>
#        define __WRL_ASSERT__(cond) NT_ASSERT(cond)
#    else
// Take CRT assert as default
#        include <crtdbg.h>
#        define __WRL_ASSERT__(cond) _ASSERTE(cond)
#    endif // BUILD_WINDOWS
#endif // __WRL_ASSERT__
 
#ifndef __WRL_IMPLEMENTS_FTM_BASE__
#    ifdef __WRL_CONFIGURATION_LEGACY__
#        define __WRL_IMPLEMENTS_FTM_BASE__(flags) (false)
#    else
#        define __WRL_IMPLEMENTS_FTM_BASE__(flags) ((flags & ::Microsoft::WRL::InhibitFtmBase) == 0)
#    endif
#endif
 
#ifndef __WRL_CONFIGURATION_LEGACY__
#    ifndef __WRL_STRICT__
// #define __WRL_STRICT__
#    endif
#endif
 
// Include common headers
#include <windows.h>
 
// Helper types
namespace Microsoft
{
    namespace WRL
    {
        namespace Details
        {
 
            struct BoolStruct
            {
                int Member;
            };
 
            typedef int BoolStruct::*BoolType;
 
            inline void RaiseException(HRESULT hr, DWORD dwExceptionFlags = EXCEPTION_NONCONTINUABLE)
            {
                ::RaiseException(static_cast<DWORD>(hr), dwExceptionFlags, 0, NULL);
            }
 
            template <bool b, typename T = void>
            struct EnableIf
            {};
 
            template <typename T>
            struct EnableIf<true, T>
            {
                typedef T type;
            };
 
            template <typename T1, typename T2>
            struct IsSame
            {
                static const bool value = false;
            };
 
            template <typename T1>
            struct IsSame<T1, T1>
            {
                static const bool value = true;
            };
 
            template <class T>
            struct RemoveReference
            {
                typedef T Type;
            };
 
            template <class T>
            struct RemoveReference<T&>
            {
                typedef T Type;
            };
 
            template <class T>
            struct RemoveReference<T&&>
            {
                typedef T Type;
            };
 
            template <class T>
            inline typename RemoveReference<T>::Type&& Move(_Inout_ T&& arg) throw()
            {
                return std::move(arg);
            }
 
            template <class T>
            inline void Swap(_Inout_ T& left, _Inout_ T& right) throw()
            {
                T tmp = Move(left);
                left = Move(right);
                right = Move(tmp);
            }
 
            // Disables template argument deduction from Forward helper
            template <class T>
            struct Identity
            {
                // Map T to type unchanged
                typedef T Type;
            };
 
            template <class T>
            inline T&& Forward(typename Identity<T>::Type& arg) throw()
            {
                // Forward arg, given explicitly specified Type parameter
                return std::forward<T>(arg);
            }
 
            template <typename Base, typename Derived>
            struct IsBaseOfStrict
            {
                static const bool value = __is_base_of(Base, Derived);
            };
 
            template <typename Base>
            struct IsBaseOfStrict<Base, Base>
            {
                static const bool value = false;
            };
 
        }
    }
} // namespace Microsoft::WRL::Details