reverted fixed pushed yesturday

The problem was that CudaNdarrays would not allow you to zero some part of them. My fix was to allocate a ndarray and have then the CudaNdarray setitem to copy that memory on the card. Fred fixed the bug on the CudaNdarray side though so this fix (which is suboptimal) is not needed anymore.

reverted fixed pushed yesturday
c0716dc6 · Razvan Pascanu · c11d8728 · c0716dc6
--- a/theano/scan_module/scan_op.py
+++ b/theano/scan_module/scan_op.py
@@ -971,7 +971,7 @@ class Scan(PureOp):
            # expected to return 0 for all entries for which the gradient is
            # not actually computed
            elif store_steps[idx] > i - self.mintaps[idx]:
-                outs[idx][0][i - self.mintaps[idx]:] = numpy.zeros_like(outs[idx][0][i - self.mintaps[idx]:])
+                outs[idx][0][i - self.mintaps[idx]:] = 0
                # This is a fix for a bug introduced by while. If you say
                # you want to loop up to a condition, you expect the output
                # to have that length ( and not the maximal length possible)