Re: [PATCH] Fix expressions always false

Поиск
Список
Период
Сортировка
От ilmari@ilmari.org (Dagfinn Ilmari Mannsåker)
Тема Re: [PATCH] Fix expressions always false
Дата
Msg-id 87tv5v27i0.fsf@wibble.ilmari.org
обсуждение исходный текст
Ответ на [PATCH] Fix expressions always false  (Ranier Vilela <ranier.vf@gmail.com>)
Ответы Re: [PATCH] Fix expressions always false  (Ranier Vilela <ranier.vf@gmail.com>)
Список pgsql-hackers
Ranier Vilela <ranier.vf@gmail.com> writes:

> More about expressions always false.
> 2. src/backend/utils/adt/formatting.c
> result is declared long. Comparison with int limits is always false.
> 3. src/backend/utils/adt/jsonfuncs.c
> lindex is declared long. . Comparison with int limits is always false.

1) long is 64 bits on Unix-like platforms
2) checking a long against LONG_MIN/LONG_MAX is _definitely_ pointless
3) it's being cast to an int for the from_char_set_int() call below

Please take your time to read the whole context of the code you're
changing, and consider other platforms than just Windows.

- ilmari
-- 
"A disappointingly low fraction of the human race is,
 at any given time, on fire." - Stig Sandbeck Mathisen



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Rui DeSousa
Дата:
Сообщение: Re: [HACKERS] kqueue
Следующее
От: Ranier Vilela
Дата:
Сообщение: More issues with expressions always false (no patch)