Details
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Type:
Bug
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Status: Closed (View Workflow)
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Priority:
High
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 6.22/00
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Component/s: PyROOT
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Labels:None
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Environment:
master on 40983d5bbda3200b101c0b7d5c74eccbff3cff20
pyroot_experimental=ON
Description
Such as reported on the forum (https://root-forum.cern.ch/t/reading-boolean-data-from-ttree-using-pyroot/39178), the conversion from a boolean numpy array to a bool* is broken. See the following reproducer.
import ROOT |
import numpy |
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ROOT.gInterpreter.Declare("""
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void convert(bool* x) { |
cout << x[0] << ", " << x[1] << endl; |
}
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void convert(int* x) { |
cout << x[0] << ", " << x[1] << endl; |
}
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""")
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# Works
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i = numpy.array([0, 1], dtype=numpy.int32) |
ROOT.convert(i)
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# Fails with
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# void ::convert(bool* x) =>
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# TypeError: could not convert argument 1 (could not convert argument to buffer or nullptr)
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b = numpy.array([0, 1], dtype=numpy.bool) |
ROOT.convert(b)
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