[cl.array] Prefer input arrays' constructor instead of cla.Array to instantiate the output

[kaushikcfd]

• For the best viewing experience please switch to the commit-by-commit view.
• Version bump because of the following incoherence with numpy:

  
  >>> import numpy as np
  >>> np.hstack([])
  Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<__array_function__ internals>", line 180, in hstack
  File "/home/kgk2/projects/ceesd/miniforge3/envs/ceesd/lib/python3.8/site-packages/numpy/core/shape_base.py", line 345, in hstack
  return _nx.concatenate(arrs, 1)
  File "<__array_function__ internals>", line 180, in concatenate
  ValueError: need at least one array to concatenate

need at least one array to concatenate

import pyopencl.array as cla cla.hstack([]) Traceback (most recent call last): File "", line 1, in File "/home/kgk2/projects/ceesd/pyopencl/pyopencl/array.py", line 2700, in hstack return empty(queue, (), dtype=np.float64) File "/home/kgk2/projects/ceesd/pyopencl/pyopencl/array.py", line 580, in init self.base_data = cl.Buffer( TypeError: init(): incompatible constructor arguments. The following argument types are supported:

1. pyopencl._cl.Buffer(context: pyopencl._cl.Context, flags: int, size: int = 0, hostbuf: object = None)

Invoked with: None, 1, 8

init(): incompatible constructor arguments. The following argument types are supported:

1. pyopencl._cl.Buffer(context: pyopencl._cl.Context, flags: int, size: int = 0, hostbuf: object = None)

Invoked with: None, 1, 8

[inducer]

LGTM, thanks!

[inducer]

https://pypi.org/project/pyopencl/2021.2.12/, should wind its way to conda soon.