Re: One-line comment to improve understanding of VARSIZE_ANY_EXHDR macro

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Gurjeet Singh <gurjeet(at)singh(dot)im>
Cc: PGSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: One-line comment to improve understanding of VARSIZE_ANY_EXHDR macro
Date: 2013-09-11 00:18:59
Message-ID: 20130911001859.GL16378@momjian.us
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Applied.

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On Tue, Feb 19, 2013 at 06:40:07PM -0500, Gurjeet Singh wrote:
> Hopefully I am not wrong.
>
>
> +/* Size of a varlena data, excluding header */
> #define VARSIZE_ANY_EXHDR(PTR) \
>
>
> --
> Gurjeet Singh
>
> http://gurjeet.singh.im/
>
> EnterprsieDB Inc.

> diff --git a/src/include/postgres.h b/src/include/postgres.h
> index f9c5527..5f8ada6 100644
> --- a/src/include/postgres.h
> +++ b/src/include/postgres.h
> @@ -267,6 +267,7 @@ typedef struct
> (VARATT_IS_1B(PTR) ? VARSIZE_1B(PTR) : \
> VARSIZE_4B(PTR)))
>
> +/* Size of a varlena data, excluding header */
> #define VARSIZE_ANY_EXHDR(PTR) \
> (VARATT_IS_1B_E(PTR) ? VARSIZE_1B_E(PTR)-VARHDRSZ_EXTERNAL : \
> (VARATT_IS_1B(PTR) ? VARSIZE_1B(PTR)-VARHDRSZ_SHORT : \

>
> --
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--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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