[issue27274] [ctypes] Allow from_pointer creation

[Memeplex]

Memeplex added the comment:

I have been happily using this helper function:

def c_array(*args):
    if type(args[1]) is int:
        ptr, size = args
        return (ptr._type_ * size).from_address(ct.addressof(ptr.contents))
    else:
        c_type, buf = args
        return (c_type * (len(buf) // ct.sizeof(c_type))).from_buffer_copy(buf)

For example:

c_array(ptr_obj, 10)

c_array(c_int, bytes_obj)

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27274>
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