Scala example source code file (RichLong.scala)

This example Scala source code file (RichLong.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

anyval, int, integralproxy, long, perhaps, richlong, string, this

The RichLong.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2002-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package runtime

final class RichLong(val self: Long) extends AnyVal with IntegralProxy[Long] {
  protected def num = scala.math.Numeric.LongIsIntegral
  protected def ord = scala.math.Ordering.Long

  override def doubleValue() = self.toDouble
  override def floatValue()  = self.toFloat
  override def longValue()   = self
  override def intValue()    = self.toInt
  override def byteValue()   = self.toByte
  override def shortValue()  = self.toShort

  override def isValidByte  = self.toByte.toLong == self
  override def isValidShort = self.toShort.toLong == self
  override def isValidChar  = self.toChar.toLong == self
  override def isValidInt   = self.toInt.toLong == self
           def isValidLong  = true
  // override def isValidFloat = self.toFloat.toLong == self && self != Long.MaxValue
  // override def isValidDouble = self.toDouble.toLong == self && self != Long.MaxValue

  override def abs: Long             = math.abs(self)
  override def max(that: Long): Long = math.max(self, that)
  override def min(that: Long): Long = math.min(self, that)
  override def signum: Int           = math.signum(self).toInt
  
  /** There is no reason to round a `Long`, but this method is provided to avoid accidental conversion to `Int` through `Float`. */
  @deprecated("This is an integer type; there is no reason to round it.  Perhaps you meant to call this on a floating-point value?", "2.11.0")
  def round: Long = self

  def toBinaryString: String = java.lang.Long.toBinaryString(self)
  def toHexString: String    = java.lang.Long.toHexString(self)
  def toOctalString: String  = java.lang.Long.toOctalString(self)
}