STINNER Victor added the comment:
- if (PyObject_GetBuffer(input, &vbuf, PyBUF_SIMPLE) < 0)
- return NULL;
Oh by the way, I forgot to mention a subtle change.
PyObject_GetBuffer(PyBUF_SIMPLE) is less strict that PyArg_Parse("y#") /
"buffer" converter of Argument Clinic: getargs.c also checks that the buffer is
contiguous, extract of getbuffer():
if (!PyBuffer_IsContiguous(view, 'C')) {
PyBuffer_Release(view);
*errmsg = "contiguous buffer";
return -1;
}
I don't know well the buffer protocol. I don't know any object which provide a
non-contiguous buffer. At least, I can say that the last time I looked at this
dark part of Python, the documentation was between tiny and non-existent :-/
The buffer protocol is complex but not well documented :-(
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<http://bugs.python.org/issue29300>
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