boost loop unrolling | GameDev.net

Original Post

Apr 14, 2009 at 12:27 AM

im looking for loop unrolling functionality somewhere in the boost library similar to: http://www.ddj.com/cpp/184401835 but so far i havent found anything... does anyone know if the boost library has any of this functionality?

mfawcett

Apr 14, 2009 at 11:28 AM

Boost.MPL.for_each is close, but probably not exactly what you are looking for.

Sneftel

296

Sneftel

Apr 14, 2009 at 11:38 AM

You can also use BOOST_PP_REPEAT for this sort of thing. Honestly, though, I wouldn't. The compiler is much better than a programmer at deciding what should and shouldn't be unrolled. I wouldn't even consider unrolling a loop until it had already bubbled to the top of my profiler report AND it was clear to me that branch mispredictions were doing it.

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