extremes of Math.ceil

[Marlene Miller]

An inquiry into the extremes of Math.ceil

class Test {
   public static void main(String[] args) {
      //
      System.out.println(Math.ceil(10));
      System.out.println(Math.ceil(-10));
      System.out.println(Math.ceil(0));
      System.out.println(Math.ceil('c')); //'c' == 99
      System.out.println(Math.ceil(0xc));
      //  
      System.out.println(Math.ceil(0.1f));
      System.out.println(Math.ceil(-0.9f));
      //
      System.out.println(Math.ceil(Float.NaN));
      System.out.println(Math.ceil(Float.POSITIVE_INFINITY));
      System.out.println(Math.ceil(Float.NEGATIVE_INFINITY));
      System.out.println(Math.ceil(0.0f));
      System.out.println(Math.ceil(-0.0f));
      //
      System.out.println(Math.ceil(Float.MIN_VALUE));
      System.out.println(Math.floor(Float.MIN_VALUE));
      System.out.println(Math.ceil(-Float.MIN_VALUE));
      System.out.println(Math.floor(-Float.MIN_VALUE));
      //
      System.out.println(
        Math.ceil(Float.MAX_VALUE) == Float.MAX_VALUE);
      System.out.println(
        Math.ceil(Float.MAX_VALUE) == Float.POSITIVE_INFINITY);
      //
      System.out.println(
        Math.ceil(-Float.MAX_VALUE) == Integer.MIN_VALUE);
      System.out.println(
        Math.ceil(-Float.MAX_VALUE) == -Float.MAX_VALUE);
      //
      System.out.println(2 * Float.MAX_VALUE == Float.MAX_VALUE);
      System.out.println(
        2 * Float.MAX_VALUE == Float.POSITIVE_INFINITY);
      //
      System.out.println(Float.MIN_VALUE / 2 == Float.MIN_VALUE);
      System.out.println(Float.MIN_VALUE / 2 == 0.0f);
   }
}

[ May 16, 2003: Message edited by: Marlene Miller ]

[Yi Meng]

10.0
-10.0
0.0
99.0
12.0
1.0
-0.0
NaN
Infinity
-Infinity
0.0
-0.0
1.0
0.0
-0.0
-1.0
true
false
false
true
false
true
false
true

[Yi Meng]

10.0
-10.0
0.0
99.0
12.0
1.0
-0.0
NaN
Infinity
-Infinity
0.0
-0.0
1.0
0.0
-0.0
-1.0
tr