Package ca.spottedleaf.concurrentutil.util

Class IntegerUtil

java.lang.Object
ca.spottedleaf.concurrentutil.util.IntegerUtil
public final class IntegerUtil extends Object

  • Field Details

  • Method Details

    • ceilLog2

      public static int ceilLog2(int value)

    • ceilLog2

      public static long ceilLog2(long value)

    • floorLog2

      public static int floorLog2(int value)

    • floorLog2

      public static int floorLog2(long value)

    • roundCeilLog2

      public static int roundCeilLog2(int value)

    • roundCeilLog2

      public static long roundCeilLog2(long value)

    • roundFloorLog2

      public static int roundFloorLog2(int value)

    • roundFloorLog2

      public static long roundFloorLog2(long value)

    • isPowerOfTwo

      public static boolean isPowerOfTwo(int n)

    • isPowerOfTwo

      public static boolean isPowerOfTwo(long n)

    • getTrailingBit

      public static int getTrailingBit(int n)

    • getTrailingBit

      public static long getTrailingBit(long n)

    • trailingZeros

      public static int trailingZeros(int n)

    • trailingZeros

      public static int trailingZeros(long n)

    • getDivisorMultiple

      public static int getDivisorMultiple(long numbers)

    • getDivisorShift

      public static int getDivisorShift(long numbers)

    • getDivisorNumbers

      public static long getDivisorNumbers(int d)

    • branchlessAbs

      public static int branchlessAbs(int val)

    • branchlessAbs

      public static long branchlessAbs(long val)

    • getUnsignedDivisorMagic

      public static long getUnsignedDivisorMagic(long divisor, int bits)
      Usage: 
       
     static final long mult = getSimpleMultiplier(divisor, bits);
     long x = ...;
     long magic = x * mult;
     long divQ = magic >>> bits;
     long divR = ((magic & ((1 << bits) - 1)) * divisor) >>> bits;
      Parameters:
      bits - The number of bits of precision for the returned result