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Set the hash values of dummy entries to -1. Improves quality of entry->hash == hash tests.

This commit is contained in:
Raymond Hettinger 2015-01-25 16:38:52 -08:00
parent 4d45c1069b
commit b335dfe7fa
1 changed files with 2 additions and 0 deletions
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2
Objects/setobject.c
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@ -337,6 +337,7 @@ set_discard_entry(PySetObject *so, setentry *oldentry)
return DISCARD_NOTFOUND;
old_key = entry->key;
entry->key = dummy;
entry->hash = -1;
so->used--;
Py_DECREF(old_key);
return DISCARD_FOUND;
@ -621,6 +622,7 @@ set_pop(PySetObject *so)
}
key = entry->key;
entry->key = dummy;
entry->hash = -1;
so->used--;
so->finger = i + 1; /* next place to start */
return key;