On 10/28/2012 09:34 PM, Lars Buitinck wrote: > 2012/10/28 Andreas Mueller <[email protected]>: >> Sorry, thought unitc was the C-inferface. >> It is 4294967295, which is 2 ** 32 - 1, and doesn't fit in an int. >> If the random seed is a signed int (which it seems to be), it is weird >> that it works on 64bit, isn't it? > I already pushed a fix. uintc is indeed the C type "unsigned int" -- > the problem is that np.random.randint expects a long (even though this > is not documented anywhere). On a 64-bit box, long is 64 bits while > int is 32 bits, so passing UINT_MAX + 1 works fine and returns any of > the valid unsigned int values with uniform probability. On a 32-bit > box, both are 32 bits wide, so UINT_MAX doesn't fit in a signed long > and you have to give up on half of the range. > Thanks for the quick fix :)
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