pitrou commented on a change in pull request #12011:
URL: https://github.com/apache/arrow/pull/12011#discussion_r773235694
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File path: python/pyarrow/types.pxi
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@@ -82,6 +84,26 @@ cdef bytes _datatype_to_pep3118(CDataType* type):
return char
+cdef void* _as_c_pointer(v, allow_null=False) except *:
+ """
+ Convert a Python object to a raw C pointer.
+
+ Used mainly for the C data interface.
+ Integers are accepted as well as capsule objects with a NULL name.
+ (the latter for compatibility with raw pointers exported by reticulate)
+ """
+ cdef void* c_ptr
+ if isinstance(v, int):
+ c_ptr = <void*> <uintptr_t > v
+ elif PyCapsule_CheckExact(v):
+ c_ptr = PyCapsule_GetPointer(v, NULL)
+ else:
Review comment:
I don't know, is it actually useful? This is not really a user-facing
API. End users will call the higher-level bridge functions.
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