[Numpy-discussion] Purpose for bit-wise and'ing the initial mersenne twister key?

[Michael S. Gilbert]

> I'm not going to modify the upstream source and risk introducing bugs.

BTW, there is a 64-bit version of the reference mersenne twister 
implementation available [1].

Mike

[1] http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/VERSIONS/C-LANG/mt19937-64.c