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Arrays in V1 calls

From: mila boldareva <pierro(at)dds(dot)nl>
To: pgsql-novice(at)postgresql(dot)org
Subject: Arrays in V1 calls
Date: 2002-02-27 19:36:28
Message-ID: 15208214736.20020227203628@dds.nl (view raw or flat)
Thread:
Lists: pgsql-novice
Hello
I try to pass a column from a table as a parameter to a C function.

The column is an array of float8 with V1 method.
I can't find the method to pick up the arguments-arrays,

the whole thing looks like this:

PG_FUNCTION_INFO_V1(my_func);
Datum
my_func(PG_FUNCTION_ARGS) {
     ????? how to get  the parameter as a pointer
     and reach 1st, second, etc. element of array?

     float8 *a = PG_GETARG_POINTER(0) ;
     float8 c = *(a+1) ;
     ^^^^^^^^^^^^^^^^^ doesn't give the value of a[2],
                       but an incredible number
PG_RETURN_FLOAT8(c);
}

Please help me out, or recommend where to find the info (at developers
guide I found nothing like that)


thanks,
 mila                          mailto:pierro(at)dds(dot)nl


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Next:From: Tom LaneDate: 2002-02-27 23:35:28
Subject: Re: Arrays in V1 calls
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Subject: Re: Unicode and PGAccess

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