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Re: what is suffix _P in gram.y

From: Martijn van Oosterhout <kleptog(at)svana(dot)org>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: what is suffix _P in gram.y
Date: 2008-01-27 20:27:24
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Sun, Jan 27, 2008 at 09:10:31PM +0100, Pavel Stehule wrote:
> Hello,
> is it means " some PostgreSQL specific"?

Not really. The main thing is that many symbols in gram.y eventually
get turned into a #define and if the symbol is a normal looking word
that may be used in another context it's common to suffix it with a _P
(the P stands for something but I forget what. Predicate?). That way
you don't run into unexpected surprises when it compiles with other

Have a nice day,
Martijn van Oosterhout   <kleptog(at)svana(dot)org>
> Those who make peaceful revolution impossible will make violent revolution inevitable.
>  -- John F Kennedy

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