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package scalax
object Numeric {
implicit object IntIsIntegral extends Integral[Int] {
def plus(x: Int, y: Int): Int = x + y
def minus(x: Int, y: Int): Int = x - y
def times(x: Int, y: Int): Int = x * y
def quot(x: Int, y: Int): Int = x / y
def rem(x: Int, y: Int): Int = x % y
def negate(x: Int): Int = -x
def abs(x: Int): Int = if (x < 0) -x else x
def signum(x: Int): Int = if (x < 0) -1 else if (x > 0) 1 else 0
def fromInt(x: Int): Int = x
def toInt(x: Int): Int = x
def toLong(x: Int): Long = x
def toFloat(x: Int): Float = x
def toDouble(x: Int): Double = x
}
implicit object LongIsIntegral extends Integral[Long] {
def plus(x: Long, y: Long): Long = x + y
def minus(x: Long, y: Long): Long = x - y
def times(x: Long, y: Long): Long = x * y
def quot(x: Long, y: Long): Long = x / y
def rem(x: Long, y: Long): Long = x % y
def negate(x: Long): Long = -x
def abs(x: Long): Long = if (x < 0) -x else x
def signum(x: Long): Long = if (x < 0) -1 else if (x > 0) 1 else 0
def fromInt(x: Int): Long = x
def toInt(x: Long): Int = x.toInt
def toLong(x: Long): Long = x
def toFloat(x: Long): Float = x
def toDouble(x: Long): Double = x
}
implicit object FloatIsFractional extends Fractional[Float] {
def plus(x: Float, y: Float): Float = x + y
def minus(x: Float, y: Float): Float = x - y
def times(x: Float, y: Float): Float = x * y
def div(x: Float, y: Float): Float = x / y
def negate(x: Float): Float = -x
def abs(x: Float): Float = if (x < 0) -x else x
def signum(x: Float): Float = if (x < 0) -1 else if (x > 0) 1 else 0
def fromInt(x: Int): Float = x
def toInt(x: Float): Int = x.toInt
def toLong(x: Float): Long = x.toLong
def toFloat(x: Float): Float = x
def toDouble(x: Float): Double = x
}
implicit object DoubleIsFractional extends Fractional[Double] {
def plus(x: Double, y: Double): Double = x + y
def minus(x: Double, y: Double): Double = x - y
def times(x: Double, y: Double): Double = x * y
def div(x: Double, y: Double): Double = x / y
def negate(x: Double): Double = -x
def abs(x: Double): Double = if (x < 0) -x else x
def signum(x: Double): Double = if (x < 0) -1 else if (x > 0) 1 else 0
def fromInt(x: Int): Double = x
def toInt(x: Double): Int = x.toInt
def toLong(x: Double): Long = x.toLong
def toFloat(x: Double): Float = x.toFloat
def toDouble(x: Double): Double = x
}
}
trait Numeric[T] {
def plus(x: T, y: T): T
def minus(x: T, y: T): T
def times(x: T, y: T): T
def negate(x: T): T
def abs(x: T): T
def signum(x: T): T
def fromInt(x: Int): T
def toInt(x: T): Int
def toLong(x: T): Long
def toFloat(x: T): Float
def toDouble(x: T): Double
def zero = fromInt(0)
def one = fromInt(1)
}
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