Hi Christian, On Mon, Nov 21, 2005 at 02:04:01AM -0800, Christian Tismer wrote: > CPython does allow float keys and doesn't have portability > problems. The only concern here is compatability with equally > values integer keys. But that does not apply to RPython, since > we there dfon't allow mixing types at all.
Good point. RPython can probably live with a simple hash function for floats, and our W_FloatObject's hash can be more complicated (possibly using the integer as hash when the float has no fractional part, like now, or falling back to the RPython hash if there is a fractional part). > 64 bit long would be perfect That's a possibility. For PyPy we should be more explicit, though, and use a "class r_longlong" or "class r_int64". It should be part of a general design that would allow integers of various precisions. The design decision is to choose if we want classes with explicit sizes (r_int64) or C-like names (longlong)... A bientot, Armin. _______________________________________________ [email protected] http://codespeak.net/mailman/listinfo/pypy-dev
