Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?

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От 德哥
Тема Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?
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Msg-id 36b4b4cd.1914.1550ea3c586.Coremail.digoal@126.com
обсуждение исходный текст
Ответ на Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?  (Michael Meskes <meskes@postgresql.org>)
Ответы Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?
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HI,
Thanks very much, 
Because I see EDB's document ECPGplus can parser #ifdef.  
so why postgresql community not do that? 
I think many PG user need it to adpate some enviroment (like Oracle , pg, db2, ...) in .pgc code. 

best regards , 
digoal 


--
公益是一辈子的事,I'm Digoal,Just Do It.


At 2016-06-01 21:43:00, "Michael Meskes" <meskes@postgresql.org> wrote:
>>   this is my pgc code.  
>> ...
>> #ifdef ABC
>>     err *abc;
>> #endif
>> ...
>> this is ERROR
>> ecpg -t -c -I/home/digoal/pgsql9.6/include -o t.c t.pgc
>> t.pgc:15: ERROR: unrecognized data type name "err"
>> 
>> And use #ifndef and -DABC also error. 
>> ECPG parser cann't skip code in #ifdef or #ifndef ?
>
>'#ifdef' is a C precompiler command and thus is only parsed by cpp et
>al. If you want ecpg to parse it you have to use 'exec sql ifdef'
>instead.
>
>Michael
>-- 
>Michael Meskes
>Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
>Meskes at (Debian|Postgresql) dot Org
>Jabber: michael at xmpp dot meskes dot org
>VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL

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