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When deallocating a list, DECREF the items from the end back to the start.

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Guido van Rossum 1999-06-09 15:19:34 +00:00
parent 8f3e15058c
commit fa71701d46
1 changed files with 6 additions and 1 deletions
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7
Objects/listobject.c
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@ -216,7 +216,12 @@ list_dealloc(op)
{ {
int i; int i;
if (op->ob_item != NULL) { if (op->ob_item != NULL) {
for (i = 0; i < op->ob_size; i++) { /* Do it backwards, for Christian Tismer.
There's a simple test case where somehow this reduces
thrashing when a *very* large list is created and
immediately deleted. */
i = op->ob_size;
while (--i >= 0) {
Py_XDECREF(op->ob_item[i]); Py_XDECREF(op->ob_item[i]);
} }
free((ANY *)op->ob_item); free((ANY *)op->ob_item);