problems with gcc 2.96 and redhat

problems with gcc 2.96 and redhat

[Filip Floegel]

hello my dear friends,

our group has got a new computer. on this computer
was redhat pre installed. well what can i say on
this computer (Xenon 2.4Ghz) my program doesnt work
there is something strange with qag.c! we have almost
the same computer (PLDi, gcc-2.95) where my pro is running. 
here everything works perfectly!

i already
saw that there were such problems mentioned with
gcc-2.96 and redhat 7.0 connected with handling
of rounding (floating point aritm) - i dont know.
is the problem solved do i have just to use a compiler
option or do i have to reinstall gcc and gsl???


mfg,

         filip
-- 
+---------------------------------------------------------------+
| dipl.phys. Filip Floegel   e-mail:floegel@itp.uni-hannover.de |               
| ITP/Universitaet Hannover  phone: 0511/762-3381               |               
| Appelstr.2                 fax: 0511/762-4945                 |               
| 30167 Hannover                                                |               
|                                                               |               
+---------------------------------------------------------------+

Re: problems with gcc 2.96 and redhat

[Brian Gough]

Filip Floegel writes:
 > hello my dear friends,
 >  our group has got a new computer. on this computer was redhat pre
 > installed. well what can i say on this computer (Xenon 2.4Ghz) my
 > program doesnt work there is something strange with qag.c!

Please can you give more details,. e.g. an example program and output.
Thanks.

 > we have almost the same computer (PLDi, gcc-2.95) where my pro is
 > running.  here everything works perfectly!
 >  i already saw that there were such problems mentioned with
 > gcc-2.96 and redhat 7.0 connected with handling of rounding
 > (floating point aritm) - i dont know.  is the problem solved do i
 > have just to use a compiler option or do i have to reinstall gcc
 > and gsl???

Re: problems with gcc 2.96 and redhat

[Filip Floegel]

hallo gsl guys,

i am terrible sorry. it was a mistake in my programm!
and it is realy to ambarrassing to publish my stupidity!
well, the strange thing is that it was running under
gcc 2.95 in fact. ok, i will tell you what i did just to
amuse you.

1) i wanted to integrate a function which was an interpolated
function 

2) so i defined a gsl function wich calculate the value
   using spline interpolation

   but i forgot to return the value - "return result;" was missing

well, on the new computer with gcc 2.95 by accident it was running
but under RH7 with gcc 2.96 there was a problem ;-)

ok, sorry
           filipo

-- 
+---------------------------------------------------------------+
| dipl.phys. Filip Floegel   e-mail:floegel@itp.uni-hannover.de |               
| ITP/Universitaet Hannover  phone: 0511/762-3381               |               
| Appelstr.2                 fax: 0511/762-4945                 |               
| 30167 Hannover                                                |               
|                                                               |               
+---------------------------------------------------------------+