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authorDimitri Sokolyuk <demon@dim13.org>2019-01-16 01:07:38 +0100
committerDimitri Sokolyuk <demon@dim13.org>2019-01-16 01:07:38 +0100
commit65f780cdcff14da4c3214fe9ed597c3f8629c923 (patch)
tree322cc9a23c331a84f765f3694d09c7a5a7dc8206 /internal/hash/hash_log2.go
parent75dcd2d3f84836e7a362f8b2027093838439ee57 (diff)
add log2
Diffstat (limited to 'internal/hash/hash_log2.go')
-rw-r--r--internal/hash/hash_log2.go9
1 files changed, 9 insertions, 0 deletions
diff --git a/internal/hash/hash_log2.go b/internal/hash/hash_log2.go
new file mode 100644
index 0000000..5e30f17
--- /dev/null
+++ b/internal/hash/hash_log2.go
@@ -0,0 +1,9 @@
+package hash
+
+func log2(num uint32) uint32 {
+ var i uint32
+ for limit := uint32(1); limit < num; limit <<= 1 {
+ i++
+ }
+ return i
+}