Re: warnings for invalid function casts

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andres Freund <andres@anarazel.de>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-07-07T09:45:41Z
Lists: pgsql-hackers

Attachments

On 2020-07-04 16:16, Tom Lane wrote:
> Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
>> Do people prefer a typedef or just writing it out, like it's done in the
>> Python code?
> 
> I'm for a typedef.  There is *nothing* readable about "(void (*) (void))",
> and the fact that it's theoretically incorrect for the purpose doesn't
> exactly aid intelligibility either.  With a typedef, not only are
> the uses more readable but there's a place to put a comment explaining
> that this is notionally wrong but it's what gcc specifies to use
> to suppress thus-and-such warnings.

Makes sense.  New patch here.

>> But if we prefer a typedef then I'd propose
>> GenericFuncPtr like in the initial patch.
> 
> That name is OK by me.

I changed that to pg_funcptr_t, to look a bit more like C and less like 
Java. ;-)

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Fix -Wcast-function-type warnings