[Numpy-discussion] __array_wrap__
Neal Becker
ndbecker2 at gmail.com
Tue Sep 29 13:00:34 EDT 2009
fixed_pt arrays need to apply the overflow_policy after operations
(overflow_policy could be clip, or throw exception).
I thought __array_wrap__ would work for this, but it seems to not be called
when I need it. For example:
In [13]: obj
Out[13]: fixed_pt_array([ 0, 32, 64, 96, 128])
In [14]: obj*100 < this should overflow
enter: [ 0 32 64 96 128] << on entry into __array_wrap
enter: [0 32 64 96 128]
exit: [ 0 32 64 96 128]
Out[14]: fixed_pt_array([ 0, 3200, 6400, 9600, 12800])
Apparantly, obj*100 is never passed to array_wrap.
Is there another way I can do this?
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