Using comparison operators in Scala's pattern matching system

Question

Is it possible to match on a comparison using the pattern matching system in Scala? For example:

a match {
    case 10 => println(\"ten\")
    case _ >         


        

Answer 1

A solution that in my opinion is much more readable than adding guards:

(n compare 10).signum match {
    case -1 => "less than ten"
    case  0 => "ten"
    case  1 => "greater than ten"
}

Notes:

• Ordered.compare returns a negative integer if this is less than that, positive if greater, and 0 if equal.
• Int.signum compresses the output from compare to -1 for a negative number (less than 10), 1 for positive (greater than 10), or 0 for zero (equal to 10).