###############################################################################
# Copyright (c) 2015-2019, Lawrence Livermore National Security, LLC.
#
# Produced at the Lawrence Livermore National Laboratory
#
# LLNL-CODE-716457
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# All rights reserved.
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# This file is part of Ascent.
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# For details, see: http://ascent.readthedocs.io/.
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# Please also read ascent/LICENSE
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import conduit
import numpy as np
#
# Conduit supports zero copy, allowing a Conduit Node to describe and
# point to externally allocated data.
#
# set_external() is method used to zero copy data into a Node
#
n = conduit.Node()
a1 = np.zeros(10, dtype=np.int32)
a1[0] = 0
a1[1] = 1
for i in range(2,10):
a1[i] = a1[i-2] + a1[i-1]
# create another array to demo difference
# between set and set_external
a2 = np.zeros(10, dtype=np.int32)
a2[0] = 0
a2[1] = 1
for i in range(2,10):
a2[i] = a2[i-2] + a2[i-1]
n["fib_deep_copy"].set(a1);
n["fib_shallow_copy"].set_external(a2);
a1[-1] = -1
a2[-1] = -1
print(n.to_yaml())