Add .clear() and .copy_empty_like() functionality to QuantumCircuit.
#8134
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@mtreinish this should be ready now |
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…t-terra into clear-circuit
Cryoris
reviewed
Jun 10, 2022
Co-authored-by: Julien Gacon <gaconju@gmail.com>
Co-authored-by: Julien Gacon <gaconju@gmail.com>
Co-authored-by: Julien Gacon <gaconju@gmail.com>
mtreinish
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Jun 15, 2022
Co-authored-by: Matthew Treinish <mtreinish@kortar.org>
mtreinish
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Jun 16, 2022
mtreinish
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Changelog: New Feature
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Summary
Adds
.clear()and.copy_empty_like()functionality to QuantumCircuit.Closes #8132
Changelog: New Feature
Details and comments
Clear functionality to erase all instructions from a QuantumCircuit.
We clear both the data and the parameter table.
Copy empty functionality to get a cleared copy of a QuantumCircuit.
This is logically equivalent to
qc.copy().clear()however, it is done avoiding a deepcopy of the original QuantumCircuit, and therefore it is more efficient.This functionality is already implemented for DAGCircuit, and retains all relevant circuit properties other than the instructions and associated parameters (e.g. registers, bits, name, metadata). Contrary to the implementation in DAGCircuit, this method allows for an optional parameter to update the name of the copied circuit, mimicking
qc.copy(name).To do