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| author | Raymond Hettinger <python@rcn.com> | 2002-09-05 20:18:08 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2002-09-05 20:18:08 (GMT) |
| commit | bd9adab13801dcd4826488ac9afbd03c4b3f0ccf (patch) | |
| tree | 1278151d9914677f2ce08229ee555a913c747941 | |
| parent | aae5999b44e54394f91e84b775d29230d3a0a2ef (diff) | |
| download | cpython-bd9adab13801dcd4826488ac9afbd03c4b3f0ccf.zip cpython-bd9adab13801dcd4826488ac9afbd03c4b3f0ccf.tar.gz cpython-bd9adab13801dcd4826488ac9afbd03c4b3f0ccf.tar.bz2 | |
Micro-optimization for list_contains. Factored double if test
out of the loop.
| -rw-r--r-- | Objects/tupleobject.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c index 4c52de3..a6b862f 100644 --- a/Objects/tupleobject.c +++ b/Objects/tupleobject.c @@ -263,14 +263,13 @@ tuplecontains(PyTupleObject *a, PyObject *el) { int i, cmp; - for (i = 0; i < a->ob_size; ++i) { + for (i = 0, cmp = 0 ; cmp == 0 && i < a->ob_size; ++i) cmp = PyObject_RichCompareBool(el, PyTuple_GET_ITEM(a, i), - Py_EQ); - if (cmp > 0) - return 1; - else if (cmp < 0) - return -1; - } + Py_EQ); + if (cmp > 0) + return 1; + if (cmp < 0) + return -1; return 0; } |