master form_qasm()

[Xuhongze]

pq = QuantumCircuit(4)
theta = [Parameter("theta_%d" % (i), i + 1) for i in range(4)]
for i in range(4):
pq.rx(i, theta[i])
pq.rx(0, 55)
pq.ry(2, 4. * theta[0]+0.8)

pq.to_openqasm()
Out[8]: 'OPENQASM 2.0;\ninclude "qelib1.inc";\nqreg q[4];\ncreg meas[0];\nrx(2) q[0];\nrx(2) q[1];\nrx(2) q[2];\nrx(2) q[3];\nrx(55) q[0];\nry(8.8) q[2];\n'

qc.from_openqasm(pq.to_openqasm())
Traceback (most recent call last):
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/IPython/core/interactiveshell.py", line 3577, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "", line 1, in
qc.from_openqasm(pq.to_openqasm())
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/pyquafu-0.4.0-py3.10-macosx-14.0-arm64.egg/quafu/circuits/quantum_circuit.py", line 483, in from_openqasm
return qasm2_to_quafu_qc(self, openqasm)
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/pyquafu-0.4.0-py3.10-macosx-14.0-arm64.egg/quafu/qfasm/qfasm_convertor.py", line 47, in qasm2_to_quafu_qc
newqc = qparser.parse(openqasm)
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/pyquafu-0.4.0-py3.10-macosx-14.0-arm64.egg/quafu/qfasm/qfasm_parser.py", line 100, in parse
self.parser.parse(data, lexer=self.lexer, debug=debug)
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/ply-3.11-py3.10.egg/ply/yacc.py", line 333, in parse
return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/ply-3.11-py3.10.egg/ply/yacc.py", line 1120, in parseopt_notrack
p.callable(pslice)
File "/Users/xhz/miniforge3/envs/quafumaster/lib/python3.10/site-packages/pyquafu-0.4.0-py3.10-macosx-14.0-arm64.egg/quafu/qfasm/qfasm_parser.py", line 1021, in p_cdecl
raise ParserError(
quafu.qfasm.exceptions.ParserError: CREG size must be positive at line 4 file None

[Zhaoyilunnn]

qasm="""OPENQASM 2.0;
include "qelib1.inc";
qreg q[130];
creg meas[130];
rz(0.9838363386329044) q[4];
rz(0.9121657461112626) q[3];
rz(0.3120104418951949) q[2];
ry(6.540656713831163e-05) q[4];
ry(-0.0019140855342319298) q[3];
ry(0.4649862690209438) q[2];
rz(0.7020529029150169) q[4];
rz(0.18602083244311104) q[3];
rz(0.01295780134509979) q[2];
cx q[4],q[3];
cx q[3],q[2];
rz(0.6026702349624573) q[4];
rz(-0.2037840707299793) q[3];
rz(-0.0548893490788779) q[2];
ry(-0.009123235869474786) q[4];
ry(-0.005734295834893282) q[3];
ry(-0.42163575674919446) q[2];
rz(0.37977281569008675) q[4];
rz(0.05611215332208219) q[3];
rz(0.33249617932043457) q[2];
cx q[4],q[3];
cx q[3],q[2];
rz(0.5176657346910741) q[4];
rz(-0.10944773003492535) q[3];
rz(0.21960804151816338) q[2];
ry(0.3315381464480086) q[4];
ry(0.01339410444054688) q[3];
ry(-0.05817454354796717) q[2];
rz(0.10420232101083632) q[4];
rz(0.8677074837561108) q[3];
rz(0.09368728039194918) q[2];
cx q[4],q[3];
cx q[3],q[2];
barrier q[2],q[3],q[4];
measure q[4] -> meas[0];
measure q[3] -> meas[1];
measure q[2] -> meas[2];"""