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

One-line comment to improve understanding of VARSIZE_ANY_EXHDR macro

From
Gurjeet Singh
Date:
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.
Attachment

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

From
Bruce Momjian
Date:
Applied.

---------------------------------------------------------------------------

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@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + It's impossible for everything to be true. +