File: t5779-numeq-warn.scala

package info (click to toggle)
scala 2.11.12-6
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 62,924 kB
  • sloc: javascript: 28,808; java: 13,415; xml: 3,135; sh: 1,620; python: 756; makefile: 38; awk: 36; ansic: 6
file content (13 lines) | stat: -rw-r--r-- 453 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 

object Test {
  def main(args: Array[String]) {
    val d: Double = (BigInt(1) << 64).toDouble
    val f: Float = d.toFloat
    val n: java.lang.Number = d.toFloat
    assert (d == f)   // ok
    assert (d == n)   // was: comparing values of types Double and Number using `==' will always yield false
    assert (n == d)   // was: Number and Double are unrelated: they will most likely never compare equal
    assert (f == n)
    assert (n == f)
  }
}