Re: function returning a row

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От
Kjetil Haaland
Тема
Re: function returning a row
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Msg-id
200502011519.24336.kjetil.haaland@student.uib.no
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function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
Re: function returning a row Michael Fuhr <mike@fuhr.org>
Re: function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
Re: function returning a row Joe Conway <mail@joeconway.com>
Re: function returning a row Michael Fuhr <mike@fuhr.org>
Re: function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
Re: function returning a row Tom Lane <tgl@sss.pgh.pa.us>
Re: function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
Re: function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
Re: function returning a row Michael Fuhr <mike@fuhr.org>
Re: function returning a row Michael Fuhr <mike@fuhr.org>
Re: function returning a row Kjetil Haaland <kjetil.haaland@student.uib.no>
On Monday 31 January 2005 18:23, Tom Lane wrote:
> memcpy would be safer; and of course you need to explicitly append a
> null byte afterwards.

Hi again

I have now used memcopy instead since that is safer and it looks like this

text *intext = PG_GETARG_TEXT_P(0);
    text *smltext = PG_GETARG_TEXT_P(1);
    in = (char*)palloc(VARSIZE(intext)-VARHDRSZ+1);
    sml = (char*)palloc(VARSIZE(smltext)-VARHDRSZ+1);

    memcpy(in, VARDATA(intext), VARSIZE(intext)-VARHDRSZ);
    in[VARSIZE(intext)-VARHDRSZ] = '\0';
    memcpy(sml, VARDATA(smltext), VARSIZE(smltext)-VARHDRSZ);
    sml[VARSIZE(smltext)-VARHDRSZ] = '\0';

    set = (set_data *) palloc(sizeof(*set)+strlen(in)+strlen(sml)+1);

I have also added a char table to the structure, so I can keep the input 
strings here. That is why the palloc is changed. But I still have the same 
problems with it as before. Is there anything wrong in the way I have used 
the API for set returning functions? I think i have saved all the values that 
I need for the next round now, so I can't find whats wrong with it.

-Kjetil
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