mirror of https://github.com/Qiskit/qiskit.git
29 lines
892 B
YAML
29 lines
892 B
YAML
---
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fixes:
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- |
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A bug in :meth`qiskit.circuit.QuantumCircuit.from_qasm_str` and
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:meth`qiskit.circuit.QuantumCircuit.from_qasm_file` when
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loading QASM with custom gates defined has been fixed. Now, loading
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this QASM::
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OPENQASM 2.0;
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include "qelib1.inc";
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gate rinv q {sdg q; h q; sdg q; h q; }
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qreg q[1];
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rinv q[0];
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is equivalent to the following circuit::
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rinv_q = QuantumRegister(1, name='q')
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rinv_gate = QuantumCircuit(rinv_q, name='rinv')
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rinv_gate.sdg(rinv_q)
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rinv_gate.h(rinv_q)
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rinv_gate.sdg(rinv_q)
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rinv_gate.h(rinv_q)
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rinv = rinv_gate.to_instruction()
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qr = QuantumRegister(1, name='q')
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expected = QuantumCircuit(qr, name='circuit')
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expected.append(rinv, [qr[0]])
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Fixes `#1566 <https://github.com/Qiskit/qiskit-terra/issues/1566>`_
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