Mercurial > cpython-lru_cache-weakref
comparison Modules/arraymodule.c @ 55124:7bb7758e6d64
Add the fix for issue 4509 to the mapping methods.
| author | Alexandre Vassalotti <alexandre@peadrop.com> |
|---|---|
| date | Sun, 05 Jul 2009 19:57:00 +0000 |
| parents | a76b34cfc897 |
| children | 67f5e01d5a6a |
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| 55123:0522e571ce74 | 55124:7bb7758e6d64 |
|---|---|
| 1697 itemsize = self->ob_descr->itemsize; | 1697 itemsize = self->ob_descr->itemsize; |
| 1698 /* for 'a[2:1] = ...', the insertion point is 'start', not 'stop' */ | 1698 /* for 'a[2:1] = ...', the insertion point is 'start', not 'stop' */ |
| 1699 if ((step > 0 && stop < start) || | 1699 if ((step > 0 && stop < start) || |
| 1700 (step < 0 && stop > start)) | 1700 (step < 0 && stop > start)) |
| 1701 stop = start; | 1701 stop = start; |
| 1702 | |
| 1703 /* Issue #4509: If the array has exported buffers and the slice | |
| 1704 assignment would change the size of the array, fail early to make | |
| 1705 sure we don't modify it. */ | |
| 1706 if ((needed == 0 || slicelength != needed) && self->ob_exports > 0) { | |
| 1707 PyErr_SetString(PyExc_BufferError, | |
| 1708 "cannot resize an array that is exporting buffers"); | |
| 1709 return -1; | |
| 1710 } | |
| 1711 | |
| 1702 if (step == 1) { | 1712 if (step == 1) { |
| 1703 if (slicelength > needed) { | 1713 if (slicelength > needed) { |
| 1704 memmove(self->ob_item + (start + needed) * itemsize, | 1714 memmove(self->ob_item + (start + needed) * itemsize, |
| 1705 self->ob_item + stop * itemsize, | 1715 self->ob_item + stop * itemsize, |
| 1706 (Py_SIZE(self) - stop) * itemsize); | 1716 (Py_SIZE(self) - stop) * itemsize); |