Re: Strange interval arithmetic

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: Strange interval arithmetic
Дата
Msg-id 1947.1133390993@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Strange interval arithmetic  (Michael Fuhr <mike@fuhr.org>)
Ответы Re: Strange interval arithmetic  (Michael Fuhr <mike@fuhr.org>)
Re: Strange interval arithmetic  (Andrew Dunstan <andrew@dunslane.net>)
Список pgsql-hackers
Michael Fuhr <mike@fuhr.org> writes:
> I suppose if we check for LONG_MAX then we should also check
> for LONG_MIN.

s/should/must/, which makes the code even more complicated, in order to
buy what exactly?

> I don't know if any systems might set ERANGE in a non-error situation.

The SUS saith
http://www.opengroup.org/onlinepubs/007908799/xsh/strtol.html
The strtol() function will not change the setting of errno ifsuccessful.

Perhaps more to the point, we've been doing it that way (errno test
only) for many years without complaints.  Adding a test on the return
value is venturing into less charted waters.
        regards, tom lane


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Michael Fuhr
Дата:
Сообщение: Re: Strange interval arithmetic
Следующее
От: Michael Fuhr
Дата:
Сообщение: Re: Strange interval arithmetic