Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Unused X86 optimization

Though the ideal max_splits for n < 1 million (or so) on x86 seems to be substantially larger, enabling a roughly 15% speedup for such tests, this optimization isn't general, and doesn't apply for n > 1 million. A too large max_splits can cause sort to take more than twice as long, so it should be set on the low end of the reasonable range, where it is right now.


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