[Boost-bugs] [Boost C++ Libraries] #8741: Can't shift left more than 31 bits with the <<= operator for number/cpp_int_backend.

Subject: [Boost-bugs] [Boost C++ Libraries] #8741: Can't shift left more than 31 bits with the <<= operator for number/cpp_int_backend.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-06-27 16:19:33

#8741: Can't shift left more than 31 bits with the <<= operator for
number/cpp_int_backend.
----------------------------------+----------------------------
 Reporter:  neal.p.smith@…        |      Owner:  johnmaddock
     Type:  Bugs                  |     Status:  new
Milestone:  To Be Determined      |  Component:  multiprecision
  Version:  Boost 1.53.0          |   Severity:  Problem
 Keywords:  multiprecision shift  |
----------------------------------+----------------------------
 Can't shift left more than 31 bits with the <<= operator for
 number/cpp_int_backend.

 number<cpp_int_backend<90, 90, unsigned_magnitude, unchecked, void>>
 testNum("0x00BBBBCCCCDDDDEEEEFFFF");

 // testNum remains unchanged
 testNum <<= 32;

 // testNum shifts left one bit.
 testNum <<= 33;

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8741>
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