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Re: Question

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Mateusz_madi <madi.czadi@gmail.com> writes:

> if char is 8 bit long so -1 is : 1111 1111
> and i assign it to int which let's say is 32 bit long, shoudn't int
> look like: 0000 0000 0000 1111 ?

No.  Type conversions in C preserve value, not bit pattern.  If
you assign -1, of any integer type, to an object with any other
signed integer type, the destination will have value -1.

I don't understand how you'd come up with the bit pattern that
you suggested anyway.  You wrote a total of 16 bits (not 32), and
you only made 4 of them 1-bits (not 8).
-- 
Ben Pfaff 
http://benpfaff.org

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Question Mateusz_madi <madi.czadi@gmail.com> - 2011-06-08 10:31 -0700
  Re: Question Ben Pfaff <blp@cs.stanford.edu> - 2011-06-08 10:36 -0700
    Re: Question Mateusz_madi <madi.czadi@gmail.com> - 2011-06-08 10:49 -0700
      Re: Question Ben Pfaff <blp@cs.stanford.edu> - 2011-06-08 10:54 -0700
        Re: Question Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2011-06-08 12:49 -0600
          Re: Question Keith Thompson <kst-u@mib.org> - 2011-06-08 11:55 -0700
            Re: Question Ben Pfaff <blp@cs.stanford.edu> - 2011-06-08 12:21 -0700
              Re: Question "Kleuskes & Moos" <kleuske@xs4all.nl> - 2011-06-08 16:02 -0700
              Re: Question Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2011-06-08 17:31 -0600
            Re: Question Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2011-06-08 17:30 -0600
            Re: Question Peter Nilsson <airia@acay.com.au> - 2011-06-08 16:34 -0700
      Re: Question "Morris Keesan" <mkeesan@post.harvard.edu> - 2011-06-08 16:52 -0400
        Re: Question Ben Pfaff <blp@cs.stanford.edu> - 2011-06-08 13:54 -0700
          Re: Question "J. J. Farrell" <jjf@bcs.org.uk> - 2011-06-09 03:22 +0100
  Re: Question Keith Thompson <kst-u@mib.org> - 2011-06-08 10:47 -0700

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