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  1. JDK
  2. JDK-4175006

Math.round(Float.NaN) returns Integer.MAX_VALUE instead of 0

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    • sparc
    • solaris_2.5

    Description



      Name: mgC56079 Date: 09/20/98



      According to the JLS 20.11.18 Math.round(Float.NaN) should return 0.

      === Here is the test ===
      public class Round {
          public static void main(String args[]) {
              System.out.println(Math.round(Float.NaN));
          }
      }
      === Sample run ===
      % java Round
      2147483647

      ======================================================================

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-1229191 (math) Converting floating-point numbers to ints doesn't always work properly

          • P3 - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-4686820 narrowing from float -NaN to int should produce constant 0

          • P3 - Major loss of function.
          • Closed

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              darcy Joe Darcy
              mgorshen Mikhail Gorshenev (Inactive)
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