diff options
| -rw-r--r-- | src/library/scala/math/package.scala | 12 | ||||
| -rw-r--r-- | test/files/jvm/signum.scala | 15 |
2 files changed, 18 insertions, 9 deletions
diff --git a/src/library/scala/math/package.scala b/src/library/scala/math/package.scala index 8948722340..0417461f85 100644 --- a/src/library/scala/math/package.scala +++ b/src/library/scala/math/package.scala @@ -127,15 +127,9 @@ package object math { else if (x > 0) 1.0f else x // NaN - def signum(x: Long): Long = - if (x == 0l) 0l - else if (x < 0) -1l - else 1l - - def signum(x: Int): Int = - if (x == 0) 0 - else if (x < 0) -1 - else 1 + def signum(x: Long): Long = java.lang.Long.signum(x) + + def signum(x: Int): Int = java.lang.Integer.signum(x) // ----------------------------------------------------------------------- // root functions diff --git a/test/files/jvm/signum.scala b/test/files/jvm/signum.scala new file mode 100644 index 0000000000..feb28d3e43 --- /dev/null +++ b/test/files/jvm/signum.scala @@ -0,0 +1,15 @@ +object Test { + def main(args: Array[String]) { + assert(math.signum(Long.MaxValue) == 1L) + assert(math.signum(1L) == 1L) + assert(math.signum(0L) == 0L) + assert(math.signum(-1L) == -1L) + assert(math.signum(Long.MinValue) == -1L) + + assert(math.signum(Int.MaxValue) == 1) + assert(math.signum(1) == 1) + assert(math.signum(0) == 0) + assert(math.signum(-1) == -1) + assert(math.signum(Int.MinValue) == -1) + } +} |