Use common implementation of fastLog2 based on countLeadingZeroBits

2019-06-20 20:56:56 +03:00
parent f8724654a1
commit 39bdf34b9f
3 changed files with 3 additions and 15 deletions
@@ -11,17 +11,6 @@ internal actual fun defaultPlatformRandom(): Random =
    Random(js("(Math.random() * Math.pow(2, 32)) | 0").unsafeCast<Int>())


-internal actual fun fastLog2(value: Int): Int {
-    // TODO: not so fast, make faster
-    var v = value
-    var log = -1
-    while (v != 0) {
-        v = v.ushr(1)
-        log++
-    }
-    return log
-}
-
 private val INV_2_26: Double = 2.0.pow(-26)
 private val INV_2_53: Double = 2.0.pow(-53)
 internal actual fun doubleFromParts(hi26: Int, low27: Int): Double =