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--- new:bits [2018/02/19 10:25] – korshun
+++ new:bits [2018/02/19 10:29] (current) – korshun
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 ====== Bit functions ======
+These functions are for bit math.
+===== Powers of two =====
+  * ''int npo2(int x)'' -- returns the next lowest power of 2 greater or equal to X.
+  * ''int bitlog2(int x)'' -- returns the index of the highest used bit, aka integer binary logarithm. Useful to convert flags like ''1<<8 = 256'' back into ''8''.
 ===== Working with bit arrays =====

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