Floating Point Math class problem on Tru64 Alpha v 5.1

Thu Oct 18 20:03:00 GMT 2001

>Category: libgcj
>Synopsis: Floating Point Math class problem on Tru64 Alpha v 5.1
>Confidential: no
>Severity: serious
>Priority: medium
>Class: sw-bug
>Submitter-Id: net
>Originator: Antonio Ake
>Release: 3.0.2 prerelease
>Environment:
TRu64 Unix v 5.1
>Description:
his is the part of the code executing:
 public static double d1f (double arg) {
 double y,x;
 
 	 System.out.print("Argument arg is " + arg + " ");
	 y= Math.exp(arg);
	 System.out.print("Argument y is " + y + " ");
	 x=Math.pow((y+1.0),2.0);
	 System.out.print("Argument x is " + x + "\n");
	 return ( (2.0 * y)/x );
}
The problem is when x is infinity.
Argument arg is 378.0812928461101 
Var y is 1.5798621479294393E164 
Var x is Infinity
Floating point exception (core dumped)
I tested on Linux x/86 and it is working, the problem is on Tru64 Unix
>How-To-Repeat:

>Fix:

>Unformatted: