8000 ENH: add identity kwarg to frompyfunc by mattharrigan · Pull Request #8255 · numpy/numpy · GitHub
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ENH: add identity kwarg to frompyfunc #8255

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Merged
merged 4 commits into from
Jan 17, 2020
+48 −8
Merged

ENH: add identity kwarg to frompyfunc #8255

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a95ade8
ENH: add identity kwarg to frompyfunc
mattharrigan Nov 8, 2016
8d09f79
Merge branch 'master' into frompyfunc-identity
eric-wieser Dec 4, 2019
ecca72e
Update umathmodule.c
eric-wieser Dec 4, 2019
2e43d9d
Add test, docs, and release note for identity
eric-wieser Dec 6, 2019
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Update umathmodule.c
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@eric-wieser
eric-wieser authored Dec 4, 2019
commit ecca72e069008af6c36c2dcd64201a4ecc141a1a
6 changes: 3 additions & 3 deletions numpy/core/src/umath/umathmodule.c
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Expand Up @@ -79,10 +79,10 @@ ufunc_frompyfunc(PyObject *NPY_UNUSED(dummy), PyObject *args, PyObject *kwds) {
Py_ssize_t fname_len = -1;
void * ptr, **data;
int offset[2];
int identity = PyUFunc_None;
PyObject *identity = NULL; /* note: not the same semantics as Py_None */
static char *kwlist[] = {"", "nin", "nout", "identity", NULL};

if (!PyArg_ParseTupleAndKeywords(args, kwds, "Oii|$i:frompyfunc", kwlist,
if (!PyArg_ParseTupleAndKeywords(args, kwds, "Oii|$O:frompyfunc", kwlist,
&function, &nin, &nout, &identity)) {
return NULL;
}
Expand Down Expand Up @@ -150,7 +150,7 @@ ufunc_frompyfunc(PyObject *NPY_UNUSED(dummy), PyObject *args, PyObject *kwds) {

self = (PyUFuncObject *)PyUFunc_FromFuncAndDataAndSignatureAndIdentity(
(PyUFuncGenericFunction *)pyfunc_functions, data,
types, /* ntypes */ 1, nin, nout, PyUFunc_IdentityValue,
types, /* ntypes */ 1, nin, nout, identity ? PyUFunc_IdentityValue : PyUFunc_None,
str, doc, /* unused */ 0, NULL, identity);
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A future PR could add signature, which would help vectorize


if (self == NULL) {
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