When, given a bit-vector representation of 8 devices, would I want to do somethi... | Hacker News

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tptacek on June 30, 2009 | parent | context | favorite | on: Low Level Bit Hacks You Absolutely Must Know

When, given a bit-vector representation of 8 devices, would I want to do something with the "right-most" of those devices?

pkrumins on June 30, 2009 [–]

for example, those 8 devices were 8 LEDs, some of them on, and you'd want to turn the rightmost led off. :)

edit: i'll look into more serious applications when i write that article on bit trick applications.

tptacek on July 1, 2009 | [–]

Ok, lights are a good example.

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