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* listobject.c (list_ass_slice): XDECREF instead of DECREF so

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setlistslice() can be used to cut the unused part out of a freshly made
  slice (as done by bagof()).  [needed by the next mod!]
* structural changes to bagof(), map() etc.
This commit is contained in:
Guido van Rossum 1993-10-27 14:56:44 +00:00
parent 4bd023f882
commit dc4b93db70
2 changed files with 127 additions and 186 deletions
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10
Objects/listobject.c
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@ -401,9 +401,9 @@ list_ass_slice(a, ilow, ihigh, v)
ihigh = a->ob_size;
item = a->ob_item;
d = n - (ihigh-ilow);
if (d <= 0) { /* Delete -d items; DECREF ihigh-ilow items */
if (d <= 0) { /* Delete -d items; XDECREF ihigh-ilow items */
for (k = ilow; k < ihigh; k++)
DECREF(item[k]);
XDECREF(item[k]);
if (d < 0) {
for (/*k = ihigh*/; k < a->ob_size; k++)
item[k+d] = item[k];
@ -412,7 +412,7 @@ list_ass_slice(a, ilow, ihigh, v)
a->ob_item = item;
}
}
else { /* Insert d items; DECREF ihigh-ilow items */
else { /* Insert d items; XDECREF ihigh-ilow items */
RESIZE(item, object *, a->ob_size + d);
if (item == NULL) {
err_nomem();
@ -421,13 +421,13 @@ list_ass_slice(a, ilow, ihigh, v)
for (k = a->ob_size; --k >= ihigh; )
item[k+d] = item[k];
for (/*k = ihigh-1*/; k >= ilow; --k)
DECREF(item[k]);
XDECREF(item[k]);
a->ob_item = item;
a->ob_size += d;
}
for (k = 0; k < n; k++, ilow++) {
object *w = b->ob_item[k];
INCREF(w);
XINCREF(w);
item[ilow] = w;
}
return 0;