From: Michael Meskes <Michael_Meskes@topmail.de>
To: pgsql-interfaces@postgreSQL.org
Subject: Re: [INTERFACES] ecpg: use of #defines
Date: Sat, 20 Feb 1999 17:52:58 +0100
Message-ID: <19990220175258.A687@gmx.net> (raw)
In-Reply-To: <Pine.LNX.4.10.9902201017420.897-100000@hobbes.math.ksu.edu>
References: <Pine.LNX.4.00.9902201523380.624-100000@arthur.local>
<Pine.LNX.4.10.9902201017420.897-100000@hobbes.math.ksu.edu>
On Sat, Feb 20, 1999 at 10:22:09AM -0600, James Thompson wrote:
> In my exec sql begin declare section i have items like
>
> char uid_result[31];
>
> which I tried to replace last night with
> char uid_result[UID_LEN];
>
> and I placed #define UID_LEN 31 in a .h file
#define is only parsed by cpp not by ecpg.
> I changed my #include with a exec sql include to include the .h file
>
> The parser didn't like the char uid_result[UID_LEN] line
>
> I'm pretty sure I understand the mechanics of this, cpp hasn't run and
> UID_LEN is an invalid value.
Try 'exec sql define UID_LEN 31;'
> Is there a workaround? Other than hard coding the 31
No need to work around this as the functionality is already there. Please
see test1.pgc for an example. Yes, I know I should document all this. :-)
Note, that using the exec sql define command is sufficient. You do not need
a #define anymore since ecpg will make the replacement.
Michael
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To: pgsql-interfaces@postgresql.org
Cc: Michael_Meskes@topmail.de
Subject: Re: [INTERFACES] ecpg: use of #defines
In-Reply-To: <19990220175258.A687@gmx.net>
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