Thread

1. postgresql 7.1.1 and textout and textin

   Jaume Teixi <teixi@6tems.com> — 2001-06-27T13:42:14Z

   hello,
   
   trying to migrate production servers form 7.0.2 to 7.1.1 now I need to
   compile an function written in c and when compiling using following
   includes:
   
   #include <postgres.h>
   #include <utils/builtins.h>
   #include <utils/palloc.h>
   #include <string.h>
   
   I get following compile errors:
   
   c:82: warning: passing arg 1 of `textout' from incompatible pointer type
   
   line 82:  src = textout( src_string );
   
   c:238: warning: passing arg 1 of `textin' from incompatible pointer type
   
   line 238:  return( (text *)textin( ret ) );
   
   function I'm trying to port is this one:
   http://www.ca.postgresql.org/mhonarc/pgsql-sql/1998-06/msg00119.html
   
   
   any points to convert textout and textin to 7.1 ?
   
   thanks from barcelona!
   
   jaume.
   
   

2. Re: postgresql 7.1.1 and textout and textin

   lockhart@fourpalms.org — 2001-06-27T14:03:21Z

   > trying to migrate production servers form 7.0.2 to 7.1.1 now I need to
   > compile an function written in c
   ...
   > I get following compile errors:
   > c:82: warning: passing arg 1 of `textout' from incompatible pointer type
   > line 82:  src = textout( src_string );
   ...
   > any points to convert textout and textin to 7.1 ?
   
   Look in src/backend/utils/adt/ for examples of functions called from
   within other functions. You will want to upgrade to the new calling
   convention for functions, and will need to use some macros and "direct
   call" wrappers to accomplish this.
   
   It is easy, you just need to match up an example with what you want. Let
   us know if you don't find one and we can do some searching to suggest a
   specific example...
   
                        - Thomas
   
   

3. Re: Re: postgresql 7.1.1 and textout and textin

   Tom Lane <tgl@sss.pgh.pa.us> — 2001-06-27T15:04:39Z

   Thomas Lockhart <lockhart@fourpalms.org> writes:
   >> any points to convert textout and textin to 7.1 ?
   
   > Look in src/backend/utils/adt/ for examples of functions called from
   > within other functions. You will want to upgrade to the new calling
   > convention for functions, and will need to use some macros and "direct
   > call" wrappers to accomplish this.
   
   There are also some useful examples in contrib/.  Several contrib
   modules have macros like
   
   #define _textin(str) DirectFunctionCall1(textin, CStringGetDatum(str))
   
   #define _textout(str) DatumGetPointer(DirectFunctionCall1(textout, PointerGetDatum(str)))
   
   which work pretty much the same as the old textin() and textout()
   functions did.
   
   			regards, tom lane