From: Louise Catherine <r1c4n@yahoo.com>
To: pgsql-sql@postgresql.org
Subject: Make C file for create type
Date: Fri, 5 Aug 2005 01:51:18 -0700 (PDT)
Message-ID: <20050805085118.98162.qmail@web33411.mail.mud.yahoo.com> (raw)
Hallo,
I found a problem making new data type kata,expecially
when make the C file ,can anyone help me solve it.
This error occur when I'm compiling the C file :
/usr/lib/gcc-lib/i586-suse-linux/3.3.1/../../../crt1.o(.text+0x18):
In function `_start':
../sysdeps/i386/elf/start.S:98: undefined reference to
`main'
collect2: ld returned 1 exit status
Here it's my code :
file3.c
-------
#include "postgres.h"
typedef struct kata
{
char kt[30];
} kata;
kata *input_kata(char *str);
char *output_kata(kata * kata);
kata *
input_kata(char *str)
{
char kt[30];
kata *result;
if (sscanf(str, "( %s )", &kt) !=1)
{
printf ("error\n");
return NULL;
}
result = (kata *) malloc(sizeof(kata));
strcpy(result->kt,kt);
return result;
}
char *
output_kata(kata * kata)
{
char kt[30];
char *result;
strcpy(kt,kata->kt);
if (strcmp(kt,NULL))
return NULL;
result = (char *) malloc(60);
sprintf(result, "(%s)", kata->kt);
return result;
}
kata.sql
--------
CREATE FUNCTION input_kata(cstring)
RETURNS kata
AS '_OBJWD_/file3'
LANGUAGE C IMMUTABLE STRICT;
CREATE FUNCTION output_kata(kata)
RETURNS cstring
AS '_OBJWD_/file3'
LANGUAGE C IMMUTABLE STRICT;
CREATE TYPE kata (
INPUT = input_kata,
OUTPUT = output_kata
)
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To: pgsql-sql@postgresql.org
Cc: r1c4n@yahoo.com
Subject: Re: Make C file for create type
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