On 2015-09-05 11:22, Stefan Behnel wrote:
Thanks for the report. Yes, the generated C code evaluates the shift operation in C space as(1 << (__pyx_t_2 * 8)) And yes, I consider this a bug. It's not entirely easy to find the right fix, though. I mean, the obvious thing to do would be to evaluate all left-shift operations in Python space, but that wouldn't be fast for the "normal" cases. Not sure if there's a point where to draw a line, though...
To me, it's not different than overflow when multiplying C integers. So I don't really consider it a bug. It is something which could be dealt with by the overflowcheck directive.
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