Re: strtoll/strtoull emulation

On 2014-06-03 11:28:22 -0400, Tom Lane wrote:
> Andres Freund <andres@2ndquadrant.com> writes:
> > On 2014-06-03 10:55:17 -0400, Tom Lane wrote:
> >> Ugh.  Surely Windows has got *some* equivalent, perhaps named differently?
> 
> > Apparently they've added strtoull()/stroll() to msvc 2013... And there's
> > _strtoui64() which seems to have already existed a while back.
> 
> > But it seems easier to me to add one fallback centrally somewhere that
> > works on all platforms. I am not sure that msvc is the only platform
> > missing strtoull() - although I didn't find anything relevant in a quick
> > search through the buildfarm. So maybe I am worrying over nothing.
> 
> It used to be called strtouq on some really old platforms, but we already
> have code to deal with that naming.

So I guess we can just add a similar #define for _strto[u]i64 somewhere
in port/. And then fail if strtoull isn't available.

> I checked my pet dinosaur HPUX box, and it has HAVE_LONG_LONG_INT64 but
> not HAVE_STRTOULL.  It's very possibly the last such animal in captivity
> though.  I'm not really sure it's worth carrying a port file just to keep
> that platform alive.

I don't dare to make a judgement on that ;)

> Another issue is that strtoull() is not necessarily what we want anyway:
> what we want is the function corresponding to uint64, which on most
> modern platforms is going to be strtoul().

How about adding pg_strto[u]int(32|64) to deal with that? Mabye without
the pg_ prefix?

Greetings,

Andres Freund

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