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Merged revisions 82814 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r82814 | antoine.pitrou | 2010-07-11 14:12:00 +0200 (dim., 11 juil. 2010) | 4 lines

  Issue #7616: Fix copying of overlapping memoryview slices with the Intel
  compiler.
........
This commit is contained in:
Antoine Pitrou 2010-07-11 12:14:05 +00:00
parent fbf2f14777
commit 3266978300
2 changed files with 5 additions and 11 deletions
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2
Misc/NEWS
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@ -12,6 +12,8 @@ What's New in Python 2.7.1?
Core and Builtins
-----------------
- Issue #7616: Fix copying of overlapping memoryview slices with the Intel
compiler.
Library
-------

14
Objects/memoryobject.c
View File

@ -632,7 +632,7 @@ memory_subscript(PyMemoryViewObject *self, PyObject *key)
static int
memory_ass_sub(PyMemoryViewObject *self, PyObject *key, PyObject *value)
{
Py_ssize_t start, len, bytelen, i;
Py_ssize_t start, len, bytelen;
Py_buffer srcview;
Py_buffer *view = &(self->view);
char *srcbuf, *destbuf;
@ -702,16 +702,8 @@ memory_ass_sub(PyMemoryViewObject *self, PyObject *key, PyObject *value)
if (destbuf + bytelen < srcbuf || srcbuf + bytelen < destbuf)
/* No overlapping */
memcpy(destbuf, srcbuf, bytelen);
else if (destbuf < srcbuf) {
/* Copy in ascending order */
for (i = 0; i < bytelen; i++)
destbuf[i] = srcbuf[i];
}
else {
/* Copy in descencing order */
for (i = bytelen - 1; i >= 0; i--)
destbuf[i] = srcbuf[i];
}
else
memmove(destbuf, srcbuf, bytelen);
PyBuffer_Release(&srcview);
return 0;