Re: Binary tx format for an array?
От
Tom Lane
Тема
Re: Binary tx format for an array?
Дата
Msg-id
1048.1150995309@sss.pgh.pa.us
Ответ на
Re: Binary tx format for an array? (Michael Guyver)
Список
Дерево обсуждения
Re: java & endianness [Re: Binary tx format for an array?] Marc Herbert <Marc.Herbert@continuent.com>
Re: java & endianness [Re: Binary tx format for an array?] Mark Lewis <mark.lewis@mir3.com>
"Michael Guyver" writes: > are the bytes representing an int4 Oid simply 23, represented in variable buf as > [0x17][0x00][0x00][0x00] No, in the buffer they'll be in network (big-endian) byte order, [0x00][0x00][0x00][0x17] If you are running in a little-endian architecture (eg Intel) then at some point you'll be wanting to reverse the byte order to make a native integer. In C you'd use ntohl() to do this. I'm not sure what's the appropriate thing in Java --- I was under the impression that Java tried to hide hardware details like endianness, so there may be some convention about how you turn a sequence of bytes into a native integer. regards, tom lane
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