From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Wimmer <seppwimmer@hotmail.com>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: type text in c functions
Date: Sat, 18 Dec 2004 22:21:07 -0500
Message-ID: <8230.1103426467@sss.pgh.pa.us> (raw)
In-Reply-To: <BAY10-F27712116B982BAC5BEEC10D0A10@phx.gbl>
References: <BAY10-F27712116B982BAC5BEEC10D0A10@phx.gbl>
"Robert Wimmer" <seppwimmer@hotmail.com> writes:
> text *t = PG_GETARG_TEXT_P(0);
> l = VARSIZE(t) - VARHDRSZ;
> for (i = 0; i < l; i++) { if ( (t->vl_dat[i] < '0') || (t->vl_dat[i] >
> '9')) break; }
> if (i==l) ret = 0;
> else ret = i;
I think you need to rethink your return convention --- success and
failure at the first character both return 0.
Directly using the vl_dat field doesn't seem like good style (you won't
find it anywhere in the backend sources) but it works.
regards, tom lane
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To: pgsql-interfaces@postgresql.org
Cc: tgl@sss.pgh.pa.us, seppwimmer@hotmail.com
Subject: Re: type text in c functions
In-Reply-To: <8230.1103426467@sss.pgh.pa.us>
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