Horton

Re: Question about ECPGset_noind_null() and ECPGis_noind_null()

Andrew Dunstan <andrew@dunslane.net>

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From: Andrew Dunstan <andrew@dunslane.net>
To: Boszormenyi Zoltan <zb@cybertec.at>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Michael Meskes <meskes@postgresql.org>, pgsql-hackers@postgresql.org, Hans-Juergen Schoenig <hs@cybertec.at>
Date: 2009-11-19T20:38:53Z
Lists: pgsql-hackers 

Boszormenyi Zoltan wrote:
>
> Is it *really* a bug? I recalled a comment from my C teacher
> in '92 or '93 about this exact issue, that the prefix/postfix
> increment/decrement operators are executed in the
> statement in an implementation-defined order, 
>   

Not if they come after a short-circuit operator such as && - after all, 
that's what short-circuit evaluation implies. If the left hand operand 
of && is false the right hand should not be evaluated at all.

cheers

andrew