From: Randi Botse <nightdecoder@gmail.com>
To: linux-c-programming@vger.kernel.org
Subject: Help on bit operation
Date: Thu, 27 Aug 2009 06:02:19 +0700 [thread overview]
Message-ID: <34e1241d0908261602k4d07d422o7ea69b606210701a@mail.gmail.com> (raw)
Hi, I'm beginner C programmer, i have a problem, i want to store some
information in a integer, a integer will be 32 bit on my machine, i
want to have as follow:
6 bit (information 1) MSB
4 bit (information 2)
8 bit (information 3)
5 bit (information 4)
9 bit (information 5) LSB
For example i set the informations as follow (in decimal):
information 1 = 43 or 101011
information 2 = 11 or 1011
information 3 = 120 or 1111000
information 3 = 30 or 11110
information 4 = 418 or 110100010
if i join all informations i should get a 32 bit integer valued
2935782212 or 01010111011111100011110110100010, then my problem is how
to retrieve these informations on bit operation? i want to know what's
the value of information-2 or information-3, etc directly. And, is
there any good way to join these informations to be an 32 bit integer?
at this time i convert the 32bit integer into binary string, process
it's with array segment to get all informations then convert them to
integer,
to build the 32bit integer, i join all information value into binary
string (yes, 32 bit of char ;p) join all of them then convert to
integer.
I know my way is sucks and too far away from COOL thing ;p, i think
there are cool way to do this!.
Thanks before!
--
To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next reply other threads:[~2009-08-26 23:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-26 23:02 Randi Botse [this message]
2009-08-26 23:33 ` Help on bit operation Akos Marton
2009-08-26 23:37 ` Uday Verma
2009-08-26 23:45 ` Ben Rosenberg
2009-08-27 0:15 ` Glynn Clements
2009-08-27 6:43 ` Randi Botse
2009-08-28 4:52 ` Randi Botse
2009-08-28 17:02 ` Ben Rosenberg
[not found] ` <34e1241d0908281139k66e8102dy94b70e9fcfd86763@mail.gmail.com>
2009-08-28 18:40 ` Randi Botse
2009-08-28 19:58 ` Ben Rosenberg
2009-08-28 20:14 ` Tim Walberg
2009-08-28 20:19 ` Glynn Clements
2009-08-29 7:40 ` Randi Botse
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=34e1241d0908261602k4d07d422o7ea69b606210701a@mail.gmail.com \
--to=nightdecoder@gmail.com \
--cc=linux-c-programming@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).