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NNTP-Posting-Date: Tue, 08 Feb 2005 12:51:25 -0600
From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Bit manipulation
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Date: 2005-02-08T12:51:25-06:00
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> > second, i need to send the 32 bit word over a Tcp connection to a C
> > program, but
> > socket work with usigned 8 bit word, so i need to split the 32 bit in
> > 4 8bit word,
> > and when i read from the socket take 4 8bit word and combine in a 32
> > word.
>
> You should look beware of "network byte order" when you do this mapping.
  He did not say he was communicating with some other program that
expected a certain byte order, so he's free to choose any order he wants.
Of course the C program might be on another machine with another byte
order, or another floating point representation, etc, so he might need
to convert a 32 bit "word" on machine A to the equivalent on machine B.