1.1 --- a/rt/emul/mini/src/main/java/java/lang/Double.java	Fri Mar 08 23:43:01 2013 +0100
     1.2 +++ b/rt/emul/mini/src/main/java/java/lang/Double.java	Sat Mar 09 11:58:50 2013 +0100
     1.3 @@ -809,15 +809,17 @@
     1.4       * @return the bits that represent the floating-point number.
     1.5       */
     1.6      public static long doubleToLongBits(double value) {
     1.7 -        throw new UnsupportedOperationException();
     1.8 -//        long result = doubleToRawLongBits(value);
     1.9 -//        // Check for NaN based on values of bit fields, maximum
    1.10 -//        // exponent and nonzero significand.
    1.11 -//        if ( ((result & DoubleConsts.EXP_BIT_MASK) ==
    1.12 -//              DoubleConsts.EXP_BIT_MASK) &&
    1.13 -//             (result & DoubleConsts.SIGNIF_BIT_MASK) != 0L)
    1.14 -//            result = 0x7ff8000000000000L;
    1.15 -//        return result;
    1.16 +        final long EXP_BIT_MASK = 9218868437227405312L;
    1.17 +        final long SIGNIF_BIT_MASK = 4503599627370495L;
    1.18 +        
    1.19 +        long result = doubleToRawLongBits(value);
    1.20 +        // Check for NaN based on values of bit fields, maximum
    1.21 +        // exponent and nonzero significand.
    1.22 +        if ( ((result & EXP_BIT_MASK) ==
    1.23 +              EXP_BIT_MASK) &&
    1.24 +             (result & SIGNIF_BIT_MASK) != 0L)
    1.25 +            result = 0x7ff8000000000000L;
    1.26 +        return result;
    1.27      }
    1.28  
    1.29      /**
    1.30 @@ -856,7 +858,21 @@
    1.31       * @return the bits that represent the floating-point number.
    1.32       * @since 1.3
    1.33       */
    1.34 -    public static native long doubleToRawLongBits(double value);
    1.35 +    public static long doubleToRawLongBits(double value) {
    1.36 +        int[] arr = { 0, 0 };
    1.37 +        doubleToRawLongBits(value, arr);
    1.38 +        long l = arr[1];
    1.39 +        return (l << 32) | arr[0];
    1.40 +    }
    1.41 +    
    1.42 +    @JavaScriptBody(args = { "value", "arr" }, body = ""
    1.43 +        + "var a = new ArrayBuffer(8);"
    1.44 +        + "new Float64Array(a)[0] = value;"
    1.45 +        + "var out = new Int32Array(a);"
    1.46 +        + "arr[0] = out[0];"
    1.47 +        + "arr[1] = out[1];"
    1.48 +    )
    1.49 +    private static native void doubleToRawLongBits(double value, int[] arr);
    1.50  
    1.51      /**
    1.52       * Returns the {@code double} value corresponding to a given