cuda-quantum
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Measurement result type conversion to int
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Describe the bug
Type conversion from bool
to int
in kernel fails.
Steps to reproduce the bug
import cudaq
@cudaq.kernel
def mykernel() -> int:
qubit = cudaq.qubit()
result = mz(qubit)
return result
mykernel()
fails
CompilerError: 3902201743.py:7: error: Invalid return type, function was defined to return a <class 'int'> but the value being returned is of type <class 'bool'>
(offending source -> return result)
Expected behavior
import cudaq
@cudaq.kernel
def mykernel() -> bool:
qubit = cudaq.qubit()
result = mz(qubit)
return result
mykernel()
and
import cudaq
@cudaq.kernel
def mykernel() -> float:
qubit = cudaq.qubit()
result = mz(qubit)
return result
mykernel()
works.
I'm not sure this is a bug or spec.
Is this a regression? If it is, put the last known working version (or commit) here.
Not a regression
Environment
- CUDA Quantum version: 0.8.0
- Python version:
- C++ compiler:
- Operating system:
Suggestions
No response