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| author | Jeremy Hylton <jeremy@alum.mit.edu> | 2000-04-27 21:41:03 (GMT) |
|---|---|---|
| committer | Jeremy Hylton <jeremy@alum.mit.edu> | 2000-04-27 21:41:03 (GMT) |
| commit | 37b1a26c89d5f2583f04ac4efb3d799ff07634f6 (patch) | |
| tree | 390a145cc3f5c6d11be350967ddf8254367be1b0 /Objects/tupleobject.c | |
| parent | 035a07e263edd2ebb24c07862d9de6488d8bb203 (diff) | |
| download | cpython-37b1a26c89d5f2583f04ac4efb3d799ff07634f6.zip cpython-37b1a26c89d5f2583f04ac4efb3d799ff07634f6.tar.gz cpython-37b1a26c89d5f2583f04ac4efb3d799ff07634f6.tar.bz2 | |
add list_contains and tuplecontains: efficient implementations of tp_contains
Diffstat (limited to 'Objects/tupleobject.c')
| -rw-r--r-- | Objects/tupleobject.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c index 98448bd..d1627a9 100644 --- a/Objects/tupleobject.c +++ b/Objects/tupleobject.c @@ -281,6 +281,23 @@ tuplelength(a) return a->ob_size; } +static int +tuplecontains(a, el) + PyTupleObject *a; + PyObject *el; +{ + int i, cmp; + + for (i = 0; i < a->ob_size; ++i) { + cmp = PyObject_Compare(el, PyTuple_GET_ITEM(a, i)); + if (cmp == 0) + return 1; + if (PyErr_Occurred()) + return -1; + } + return 0; +} + static PyObject * tupleitem(a, i) register PyTupleObject *a; @@ -409,6 +426,7 @@ static PySequenceMethods tuple_as_sequence = { (intintargfunc)tupleslice, /*sq_slice*/ 0, /*sq_ass_item*/ 0, /*sq_ass_slice*/ + (objobjproc)tuplecontains, /*sq_contains*/ }; PyTypeObject PyTuple_Type = { |