Package com.couchbase.client.core.utils

Class MathUtils

java.lang.Object
com.couchbase.client.core.utils.MathUtils
public class MathUtils
extends Object
Various math utility methods, also backports from later JDK versions.
Since:
1.3.4
Author:
Michael Nitschinger

  • Constructor Summary

    Constructors
    Constructor Description
    MathUtils()  

  • Method Summary

    Modifier and Type Method Description
    static long floorDiv​(long x, long y)
    Backport of floorDiv from the JDK since we need to support 1.6.
    static long floorMod​(long x, long y)
    Backport of floorMod from the JDK since we need to support 1.6.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • MathUtils

      public MathUtils()

  • Method Details

    • floorMod

      public static long floorMod​(long x, long y)
      Backport of floorMod from the JDK since we need to support 1.6. Returns the largest (closest to positive infinity) long value that is less than or equal to the algebraic quotient. There is one special case, if the dividend is the Long.MIN_VALUE and the divisor is -1, then integer overflow occurs and the result is equal to the Long.MIN_VALUE.

      Normal integer division operates under the round to zero rounding mode (truncation). This operation instead acts under the round toward negative infinity (floor) rounding mode. The floor rounding mode gives different results than truncation when the exact result is negative.

      Parameters:
      x - the dividend
      y - the divisor
      Returns:
      the largest (closest to positive infinity) long value that is less than or equal to the algebraic quotient.
      Throws:
      ArithmeticException - if the divisor y is zero

    • floorDiv

      public static long floorDiv​(long x, long y)
      Backport of floorDiv from the JDK since we need to support 1.6. Returns the largest (closest to positive infinity) long value that is less than or equal to the algebraic quotient. There is one special case, if the dividend is the Long.MIN_VALUE and the divisor is -1, then integer overflow occurs and the result is equal to the Long.MIN_VALUE.

      Normal integer division operates under the round to zero rounding mode (truncation). This operation instead acts under the round toward negative infinity (floor) rounding mode. The floor rounding mode gives different results than truncation when the exact result is negative.

      Parameters:
      x - the dividend
      y - the divisor
      Returns:
      the largest (closest to positive infinity) long value that is less than or equal to the algebraic quotient.
      Throws:
      ArithmeticException - if the divisor y is zero
      See Also:
      floorMod(long, long)