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Antoine PitrouWes McKinney
494ef75f498
Antoine Pitrou authored and Wes McKinney committed 1cb1fa4139a
ARROW-3930: [C++] Avoid using Mersenne Twister for random test data

Mersenne Twister is much slower than the default C++ random engine (at least on GNU libstdc++), and we're not looking for very good statistical properties either.

Author: Antoine Pitrou <antoine@python.org>

Closes #3074 from pitrou/ARROW-3930-faster-test-random and squashes the following commits:

52993b39a <Antoine Pitrou> ARROW-3930:  Avoid using Mersenne Twister for random test data