Empty.h

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/*
 * Copyright(c) Sophist Solutions, Inc. 1990-2026.  All rights reserved
 */
#ifndef _Stroika_Foundation_Common_Empty_h_
#define _Stroika_Foundation_Common_Empty_h_ 1
 
#include "Stroika/Foundation/StroikaPreComp.h"
 
#include <type_traits>
 
/**
 *  \file
 *
 *  \note Code-Status:  <a href="Code-Status.md#Beta">Beta</a>
 */
 
namespace Stroika::Foundation::Common {
 
    /**
     *  Believe it or not, this is often useful in template metaprogramming. Because you cannot declare a data member as 'void'. This amounts to same thing if used with [[no_unique_address]]/qStroika_ATTRIBUTE_NO_UNIQUE_ADDRESS
     */
    struct Empty {
        /**
         *  Ignore any initializers, so can be used more easily in contexts where initializing with some random argument to be later ignored.
         */
        template <typename... ARGS>
        constexpr Empty (ARGS...)
        {
        }
    };
    static_assert (std::is_empty_v<Empty>);
 
}
 
/*
 ********************************************************************************
 ***************************** Implementation Details ***************************
 ********************************************************************************
 */
 
#endif /*_Stroika_Foundation_Common_Empty_h_*/