checksensible.scala:4: warning: comparing values of types scala.Ordered[scala.Unit] and scala.Unit using `>' will always yield false
  println((c = 1) > 0)
                  ^
checksensible.scala:5: warning: comparing values of types scala.Ordered[scala.Unit] and scala.Unit using `<=' will always yield true
  println((c = 1) <= 0)
                  ^
checksensible.scala:6: warning: comparing values of types scala.Unit and scala.Int using `==' will always yield false
  println((c = 1) == 0)
                  ^
checksensible.scala:8: warning: comparing values of types scala.Int and java.lang.String using `==' will always yield false
  println(1 == "abc")
            ^
checksensible.scala:9: warning: comparing values of types scala.Int and scala.Boolean using `!=' will always yield true
  println(1 != true)
            ^
checksensible.scala:11: warning: comparing a fresh object using `==' will always yield false
  println(((x: int) => x + 1) == null)
                              ^
checksensible.scala:12: warning: comparing a fresh object using `==' will always yield false
  println(new Object == new Object)
                     ^
checksensible.scala:13: warning: comparing a fresh object using `!=' will always yield true
  println(new Array(1) != new Array(1))
                       ^
checksensible.scala:20: warning: comparing values of types scala.Unit and scala.Int using `!=' will always yield true
    while((c = in.read) != -1) {
                        ^
9 warnings found