Mercurial > cpython-lru_cache-weakref

comparison Python/sysmodule.c @ 39994:798935e1295e 2.5

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Forward-port of r52136: a review of overflow-detecting code. * unified the way intobject, longobject and mystrtoul handle values around -sys.maxint-1. * in general, trying to entierely avoid overflows in any computation involving signed ints or longs is extremely involved. Fixed a few simple cases where a compiler might be too clever (but that's all guesswork). * more overflow checks against bad data in marshal.c. * 2.5 specific: fixed a number of places that were still confusing int and Py_ssize_t. Some of them could potentially have caused "real-world" breakage. * list.pop(x): fixing overflow issues on x was messy. I just reverted to PyArg_ParseTuple("n"), which does the right thing. (An obscure test was trying to give a Decimal to list.pop()... doesn't make sense any more IMHO) * trying to write a few tests...
author Armin Rigo <arigo@tunes.org>
date Wed, 04 Oct 2006 11:44:06 +0000
parents 6ba402b60041
children c58d1b969843
comparison
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39993:4eb286e931a9 39994:798935e1295e
1223 return NULL; 1223 return NULL;
1224 for (i = 0; ; i++) { 1224 for (i = 0; ; i++) {
1225 p = strchr(path, delim); 1225 p = strchr(path, delim);
1226 if (p == NULL) 1226 if (p == NULL)
1227 p = strchr(path, '\0'); /* End of string */ 1227 p = strchr(path, '\0'); /* End of string */
1228 w = PyString_FromStringAndSize(path, (int) (p - path)); 1228 w = PyString_FromStringAndSize(path, (Py_ssize_t) (p - path));
1229 if (w == NULL) { 1229 if (w == NULL) {
1230 Py_DECREF(v); 1230 Py_DECREF(v);
1231 return NULL; 1231 return NULL;
1232 } 1232 }
1233 PyList_SetItem(v, i, w); 1233 PyList_SetItem(v, i, w);