function_help.h

// Copyright (c) Electronic Arts Inc. All rights reserved.
 
#ifndef EASTL_INTERNAL_FUNCTION_HELP_H
#define EASTL_INTERNAL_FUNCTION_HELP_H
 
#if defined(EA_PRAGMA_ONCE_SUPPORTED)
    #pragma once
#endif
 
#include <EASTL/internal/config.h>
#include <EASTL/type_traits.h>
 
namespace eastl
{
    namespace internal
    {
 
        // is_null
        //
        template <typename T>
        bool is_null(const T&)
        {
            return false;
        }
 
        template <typename Result, typename... Arguments>
        bool is_null(Result (*const& function_pointer)(Arguments...))
        {
            return function_pointer == nullptr;
        }
 
        template <typename Result, typename Class, typename... Arguments>
        bool is_null(Result (Class::*const& function_pointer)(Arguments...))
        {
            return function_pointer == nullptr;
        }
 
        template <typename Result, typename Class, typename... Arguments>
        bool is_null(Result (Class::*const& function_pointer)(Arguments...) const)
        {
            return function_pointer == nullptr;
        }
 
    } // namespace internal
} // namespace eastl
 
#endif // Header include guard