Wireshark-commits: [Wireshark-commits] master b849726: Fix some cases where we're shifting a signed

From: Wireshark code review <code-review-do-not-reply@xxxxxxxxxxxxx>
Date: Fri, 1 May 2015 06:50:42 +0000 (UTC)
URL: https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=b84972635117aa5cac7f8e6296d07ceb51bfe5e2
Submitter: Guy Harris (guy@xxxxxxxxxxxx)
Changed: branch: master
Repository: wireshark

Commits:

b849726 by Guy Harris (guy@xxxxxxxxxxxx):

    Fix some cases where we're shifting a signed 1 left.
    
    Shift 1U instead, to make sure it's unsigned; the result of, for
    example, the result of shifting a signed value left is undefined if the
    value times 2^{shift count} doesn't fit in the *signed* type of the
    shifted value.  That means, in particular, that the result of shifting 1
    left by {number of bits in an int - 1} is undefined.  (In *practice*,
    it'll probably be -2^32, with the bit you want set, but that's not
    guaranteed, and GCC 5.1 seems not to like it.)
    
    Make some other left-hand operands of <<, and some variables holding
    results from shifts of that sort, unsigned, while we're at it.
    
    Change-Id: Ie72a9d0d518f59b35948267d10c80735d162e8bb
    Reviewed-on: https://code.wireshark.org/review/8264
    Reviewed-by: Guy Harris <guy@xxxxxxxxxxxx>
    

Actions performed:

    from  91515a0   Add tshark -z "ncp,srt"
    adds  b849726   Fix some cases where we're shifting a signed 1 left.


Summary of changes:
 asn1/ess/packet-ess-template.c     |    2 +-
 asn1/ranap/packet-ranap-template.c |    6 +++---
 asn1/rrc/rrc.cnf                   |   16 +++++++-------
 asn1/sv/packet-sv-template.c       |   42 ++++++++++++++++++------------------
 epan/dissectors/packet-ess.c       |    2 +-
 epan/dissectors/packet-ranap.c     |    6 +++---
 epan/dissectors/packet-rrc.c       |   16 +++++++-------
 epan/dissectors/packet-sv.c        |   42 ++++++++++++++++++------------------
 8 files changed, 66 insertions(+), 66 deletions(-)