Re: fortran/8587: (double complex zero)**(double prec number) = NAN instead of zero

Re: fortran/8587: (double complex zero)**(double prec number) = NAN instead of zero

[toon]

Synopsis: (double complex zero)**(double prec number) = NAN instead of zero

Responsible-Changed-From-To: unassigned->toon
Responsible-Changed-By: toon
Responsible-Changed-When: Mon Nov 18 14:14:54 2002
Responsible-Changed-Why:
    Fortran Maintainer.
State-Changed-From-To: open->analyzed
State-Changed-By: toon
State-Changed-When: Mon Nov 18 14:14:54 2002
State-Changed-Why:
    Also fails on Debian 3.0+ (testing) using 3.2 prerelease
    on powerpc-unknown-linux-gnu

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8587

Re: fortran/8587: (double complex zero)**(double prec number) = NAN instead of zero

[toon]

Synopsis: (double complex zero)**(double prec number) = NAN instead of zero

State-Changed-From-To: analyzed->closed
State-Changed-By: toon
State-Changed-When: Tue Nov 19 15:25:10 2002
State-Changed-Why:
    Fixed for GCC/g77-3.3

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8587

fortran/8587: (double complex zero)**(double prec number) = NAN instead of zero

[aganse]

>Number:         8587
>Category:       fortran
>Synopsis:       (double complex zero)**(double prec number) = NAN instead of zero
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 14 17:46:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Andy Ganse, Applied Physics Laboratory, Seattle
>Release:        GNU Fortran 0.5.26 20000731 (Red Hat Linux 7.2 2.96-112.7.2) and also GNU Fortran 0.5.25 19991024
>Organization:
>Environment:
GNU Fortran 0.5.26 20000731 on RedHat i386/7.3 on athlon
GNU Fortran 0.5.25 19991024 on SunOS 5.8 on Sun-Blade-1000
>Description:
There are a couple situations (produced in the small attached test source file) when a double complex variable set to zero, and raised to the power of another variable, is not equaling zero - it's coming out as NAN instead.  This all works fine in Sun F77 if that's useful for comparison...
The case where a double complex variable equaling zero is raised to a real (as opposed to double precision) constant works here but is producing slightly off values in our program when the double complex variable does not equal zero.
>How-To-Repeat:
compile and run the attached dprec.f
>Fix:
?
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="dprec.f"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="dprec.f"

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