8000 DOC: add examples to ctypeslib by m-clare · Pull Request #27598 · numpy/numpy · GitHub
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Merged
merged 2 commits into from
Oct 19, 2024
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DOC: add examples to ctypeslib #27598

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c83ee2e
DOC: examples [skip azp] [skip actions] [skip cirrus]
m-clare Oct 19, 2024
ce75474
DOC: examples [skip azp] [skip actions] [skip cirrus]
m-clare Oct 19, 2024
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DOC: examples [skip azp] [skip actions] [skip cirrus] 
Add additional method test on ctype conversion
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@m-clare
m-clare committed Oct 19, 2024
commit ce75474397238958c28f70b1a8a8eb3af3ec229d
12 changes: 8 additions & 4 deletions numpy/ctypeslib.py
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Expand Up @@ -571,15 +571,19 @@ def as_ctypes(obj):

>>> inferred_int_array = np.array([1, 2, 3])
>>> c_int_array = np.ctypeslib.as_ctypes(inferred_int_array)
>>> c_int_array
<c_long_Array_3 at 0x1071fbed0>
>>> type(c_int_array)
<class 'c_long_Array_3'>
>>> c_int_array[:]
[1, 2, 3]

Create ctypes object from explicit 8 bit unsigned int ``np.array`` :

>>> exp_int_array = np.array([1, 2, 3], dtype=np.uint8)
>>> c_int_array = np.ctypeslib.as_ctypes(exp_int_array)
>>> c_int_array
<c_ubyte_Array_3 at 0x10755a950>
>>> type(c_int_array)
<class 'c_ubyte_Array_3'>
>>> c_int_array[:]
[1, 2, 3]

"""
ai = obj.__array_interface__
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