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| author | Alon Zakai <alonzakai@gmail.com> | 2012-02-06 15:49:21 -0800 |
|---|---|---|
| committer | Alon Zakai <alonzakai@gmail.com> | 2012-02-06 15:49:21 -0800 |
| commit | c34404474ee6aa9d1c3f368792057729837812f3 (patch) | |
| tree | d7752ad459e70370b356ca229a361348a058a229 /src/utility.js | |
| parent | 749ca8a878fa3abe95d021b0a2028b23a40245ce (diff) | |
optimize memory alignment calculations
Diffstat (limited to 'src/utility.js')
| -rw-r--r-- | src/utility.js | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/utility.js b/src/utility.js index 4ffe46a0..5ddccfd4 100644 --- a/src/utility.js +++ b/src/utility.js @@ -297,6 +297,10 @@ function log2(x) { return Math.log(x)/Math.LN2; } +function isPowerOfTwo(x) { + return x > 0 && ((x & (x-1)) == 0); +} + function Benchmarker() { var starts = {}, times = {}, counts = {}; this.start = function(id) { |