[NumPy-Tickets] [NumPy] #1931: np.left_shift and np.right_shift fail on np.uint64 scalar types

[NumPy Trac]

#1931: np.left_shift and np.right_shift fail on np.uint64 scalar types
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 Reporter:  tlatorre    |       Owner:  somebody   
     Type:  defect      |      Status:  new        
 Priority:  high        |   Milestone:  Unscheduled
Component:  numpy.core  |     Version:  1.6.0      
 Keywords:              |  
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Comment(by cacois):

 Replying to [comment:2 parejkoj]:
 > I was able to code around this with the following lambda:
 >
 > {{{
 > lshift = lambda x,s: np.uint64(x)*np.uint64(2**s)
 > }}}
 >
 > This works, but is not ideal. Getting this fixed in numpy would be very
 useful.

 I'm using something similar to get around this. A real fix would be good,
 and this should be an easy issue to put into a unit test suite to make
 sure it doesn't pop up again.

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Ticket URL: <http://projects.scipy.org/numpy/ticket/1931#comment:3>
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