Mark Dickinson <dicki...@gmail.com> added the comment: +#define _PyLong_IS_SMALL_INT(v) \ + (((PyLongObject *)(v)) >= _PyLong_small_ints && \ + ((PyLongObject *)(v)) < _PyLong_SMALL_INTS_END) +/* These macros purposedly avoid a cast to int, since it is most of time + useless, and sometimes detrimental (because of truncation). + XXX _PyLong_AS_SMALL_INT might be slower if sizeof(PyLongObject) is not + a power of two. + */
Urk! This is nasty. :( I don't think arbitrary comparisons of pointers give well-defined results, unless those pointers both happen to point into the same array. (Might be wrong; I don't have a copy of the C standard to hand.) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10044> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
