Generally when you ask that question you probably won't need to use them. The main reasons you would use them:
1. bitflags -- allows to easily specify a set of 8 to 64 elements easily (https://play.golang.org/p/DZj9FerK19) 2. fast ways to compute something -- see https://graphics.stanford.edu/~seander/bithacks.html, http://aggregate.org/MAGIC/ 3. packing -- e.g. when you have seven 3 bit numbers then you can fit 21 of them into a 64bit number; to pack and extract you would need to use bit operations; similarly many packing algorithms use them for that reasons 4. bit parallel operations - when you have several packed numbers you can do some operations in bit parallel, e.g. you could add together 16 3bit numbers together in two computer cycles using a 64bit number. 5. There are also some algorithms that exploit bit operations, e.g. shift-or search http://www-igm.univ-mlv.fr/~lecroq/string/node6.html + Egon On Saturday, 22 July 2017 20:36:14 UTC-7, Alexey Dvoretskiy wrote: > > Hello golang-nuts. > > I'm new to Go language and have no solid experience with C/C++. > I was a database programmer with some Python and I was able to get around > without bitwise operators easily. > Of course, I ran into tons of issues with performance, deployment and > other stuff. That is why I switched to Go. > > The question is what are practical applications of bitwise operations in > Go and when I should use/learn them? > > Thanks > Alex > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
