Re: [sqlsmith] Planner crash on foreign table join

>>>>> "Thomas" == Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> writes:

>> SomeType *x = (SomeType *) lfirst(l);
>>
>> (in my code I tend to omit the (SomeType *), which I dislike because
>> it adds no real protection)

Thomas> Just BTW, without that cast it's not compilable as C++, so I'm
Thomas> guessing that Peter E will finish up putting it back in
Thomas> wherever you leave it out...

There's north of 150 other examples (just grep for '= lfirst' in the
source). Some were even committed by Peter E :-)

In the discussion with Andres the same point came up for palloc, for
which I suggested we add something along the lines of:

#define palloc_object(_type_) (_type_ *) palloc(sizeof(_type_))
#define palloc_array(_type_, n) (_type_ *) palloc((n) * sizeof(_type_))

palloc() without a cast is even more common than lfirst() without one,
and something like half of those (and 80%+ of the pallocs that do have a
cast) are palloc(sizeof(...)) or palloc(something * sizeof(...)).

--
Andrew (irc:RhodiumToad)