Re: [HACKERS] more on int8

> >>>Bruce Momjian said:
>  > > Just out of curiosity, does Bruce's BSDI system recognize %lld as did
>  > > Daniel's? If so, we could dispense with the %qd option for the final
>  > > release...
>  >
>  > Yes, BSDI understands %lld, but not %Ld, though it is not documented in
>  > the printf manual page.
>
> It is documented in the scanf manual page, where it says:
>
>      l       Indicates either that the conversion will be one of dioux or n
>              and the next pointer is a pointer to a long int (rather than
>              int), or that the conversion will be one of efg and the next
>              pointer is a pointer to double (rather than float). If the con-
>              version is dioux or n and two l flags are given, then the next
>              pointer will be a pointer to a double precision integer of quad_t
>              or u_quad_t (unsigned) type; these types are defined in
>              <sys/types.h>.

Yes, I see it now in the printf manual page:

         u_quad_t types are defined in <sys/types.h>. Two l conversion option
         characters are equivalent to a single q.

>
>      L       Indicates that the conversion will be efg and the next pointer is
>              a pointer to long double. (This type is not implemented; the L
>              flag is currently ignored.)
>
>      q       Indicates a double precision integer conversion; identical to us-
>              ing ll.
>
> Note the reference to u_quad_t - there is also quad_t in BSD/OS 3.1 which is
> singned. There are also (identical) types
>
> typedef u_int64_t       u_quad_t;       /* quads */
> typedef int64_t         quad_t;
>
> The same is valid for BSD/OS 4.0.
>
>  > We could probably do without %qd, but I assume their are some platforms
>  > that support %qd and not %lld.  We can ask people as they run configure
>  > if they ever see %lld failing but %qd passing.
>
> Perhaps %lld is GNUism? So it should work on most GNU based compilers. I agree
> your approach is good - to just sample the different platforms on which
> PostgreSQL is compiled.

Not sure if we should remove %qd, or keep it an wait.  May just wait to
see how many people support just %qd.

Looks like I messed up the config.h.in define for lld again, so I am
fixing it now.

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