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Subject: Re: [std-proposals] Allowing access to object representations
From: sdkrystian (sdkrystian_at_[hidden])
Date: 2019-08-17 18:49:57


unsigned char.Sent from my Samsung Galaxy smartphone.
-------- Original message --------From: Language Lawyer via Std-Proposals <std-proposals_at_[hidden]> Date: 8/17/19 19:46 (GMT-05:00) To: std-proposals_at_[hidden] Cc: Language Lawyer <language.lawyer_at_[hidden]> Subject: Re: [std-proposals] Allowing access to object representations On 18/08/2019 02:42, sdkrystian via Std-Proposals wrote:> You're right, there wouldn't be unless I specified that the object representation is considered to be an arrayArray of which type???> Sent from my Samsung Galaxy smartphone.> > -------- Original message --------> From: Language Lawyer via Std-Proposals <std-proposals_at_[hidden]>> Date: 8/17/19 18:58 (GMT-05:00)> To: std-proposals_at_[hidden]> Cc: Language Lawyer <language.lawyer_at_[hidden]>> Subject: Re: [std-proposals] Allowing access to object representations> > You propose:>  > Insert a new paragraph below [expr.reinterpret.cast] p6>  > A prvalue v of object pointer type "pointer to cv1 T1" pointing to an object a can be explicitly converted to an object pointer of a different type "pointer to cv2 T2", where cv2 is the same cv-qualification as, or greater cv-qualification than cv1, the result of which is defined as follows:>  > — f T1 is a contiguous-layout type and T2 is unsigned char, char or std::byte, the result is a pointer to the first element of the object representation of a.> > Is there much sense in specifying casts to `char` or `std::byte` as giving a pointer to the first element of the object representation?> You won't be able to use it for pointer arithmetic.> -- > Std-Proposals mailing list> Std-Proposals_at_[hidden]> https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals> -- Std-Proposals mailing listStd-Proposals_at_[hidden]https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals



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