txid strtoull fix

"Marko Kreen" <markokr@gmail.com> writes:

I noticed strtoull() causes problems on some buildfarm
machines. As a fix I propose small str2num function inside
txid.c itself. Main reason is that the txid actually does
not need fully-featured strtoull (radixes, whitespace skipping).

Seems like a sane solution to me --- applied.

(Note that your overflow test didn't actually work; AFAIK there
really isn't any decent solution other than dividing at each step.)

regards, tom lane

On 10/8/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:

"Marko Kreen" <markokr@gmail.com> writes:

I noticed strtoull() causes problems on some buildfarm
machines. As a fix I propose small str2num function inside
txid.c itself. Main reason is that the txid actually does
not need fully-featured strtoull (radixes, whitespace skipping).

Seems like a sane solution to me --- applied.

(Note that your overflow test didn't actually work; AFAIK there
really isn't any decent solution other than dividing at each step.)

Hmm. It did seem to work here. Just in case I peeked into
FreeBSD strtoull() and this patch imitates their method.

This also seems to work, but please review, I'm don't feel
very sharp anymore...

--
marko

"Marko Kreen" <markokr@gmail.com> writes:

On 10/8/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:

(Note that your overflow test didn't actually work; AFAIK there
really isn't any decent solution other than dividing at each step.)

Hmm. It did seem to work here. Just in case I peeked into
FreeBSD strtoull() and this patch imitates their method.

Well, it worked for the one specific case you tested, but there are
other cases it would fail to detect overflow for. (When you're
multiplying by ten, the overflow might not be small.) The FreeBSD
way looks OK though --- applied.

regards, tom lane