* GNU portability?
@ 2000-01-28 18:54 Christian Hofsetz
2000-01-29 14:00 ` Alexandre Oliva
2000-04-01 0:00 ` Christian Hofsetz
0 siblings, 2 replies; 6+ messages in thread
From: Christian Hofsetz @ 2000-01-28 18:54 UTC (permalink / raw)
To: gcc-help
Hi,
I have a rendering software build upon GNU C++ version 2.95.1 running
on a Windows 98 Pentium III system.
It is plain C++ thus it should work in a Unix machine.
I'm trying to run it on a SGI system w/ GNU C++ version 2.91.60. All
programs
do compile and the system runs.
Amazingly, however, the images produced by the SGI are completely wrong.
How come the same software using the same compiler produces different
results? Why is it so?
And although I use a binary file as input it is not a byte alignment
problem - I've check it.
Any hints?
Thanks!
:Christian
PS.: I've also tried to use the CC compiler. It compiles, it runs, it
generates the images but, the images are wrong but... they're different
from the wrong images generate by the GNU compiled code in the same
machine... Where's my mistake?
------------------------------------------------------------------------
Christian Hofsetz University of California
Graduate Student __ ,__o
The Visualization and Graphics Group __ _-\_<,
Department of Computer Science __ (*)/'(*)
hofsetz@cs.ucdavis.edu ~~~~~~~~~~ at Davis
------------------------------------------------------------------------
USA => http://graphics.cs.ucdavis.edu/~chofsetz
BRAZIL=> http://inf.unisinos.br/~chris/index2.html
-------
Algebraic symbols are used when you don't know what you're talking about
------------------------------------------------------------------------
"Gaucho longe dos pagos esta' sempre de passagem" - Oscar Machado
------------------------------------------------------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: GNU portability?
2000-01-28 18:54 GNU portability? Christian Hofsetz
@ 2000-01-29 14:00 ` Alexandre Oliva
2000-04-01 0:00 ` Alexandre Oliva
2000-04-01 0:00 ` Christian Hofsetz
1 sibling, 1 reply; 6+ messages in thread
From: Alexandre Oliva @ 2000-01-29 14:00 UTC (permalink / raw)
To: Christian Hofsetz; +Cc: gcc-help
On Jan 29, 2000, "Christian Hofsetz" <hofsetz@cs.ucdavis.edu> wrote:
> Amazingly, however, the images produced by the SGI are completely wrong.
We'd need much more detail than what you're supplying to even guess
what the error might be. It could be something ranging from wrong
assumptions about floating-point representation to bugs in any
libraries you might use.
--
Alexandre Oliva http://www.ic.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
oliva@{lsd.ic.unicamp.br,guarana.{org,com}} aoliva@{acm,computer}.org
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
** I may forward mail about projects to mailing lists; please use them
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: GNU portability?
2000-01-29 14:00 ` Alexandre Oliva
@ 2000-04-01 0:00 ` Alexandre Oliva
0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Oliva @ 2000-04-01 0:00 UTC (permalink / raw)
To: Christian Hofsetz; +Cc: gcc-help
On Jan 29, 2000, "Christian Hofsetz" <hofsetz@cs.ucdavis.edu> wrote:
> Amazingly, however, the images produced by the SGI are completely wrong.
We'd need much more detail than what you're supplying to even guess
what the error might be. It could be something ranging from wrong
assumptions about floating-point representation to bugs in any
libraries you might use.
--
Alexandre Oliva http://www.ic.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
oliva@{lsd.ic.unicamp.br,guarana.{org,com}} aoliva@{acm,computer}.org
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
** I may forward mail about projects to mailing lists; please use them
^ permalink raw reply [flat|nested] 6+ messages in thread
* GNU portability?
2000-01-28 18:54 GNU portability? Christian Hofsetz
2000-01-29 14:00 ` Alexandre Oliva
@ 2000-04-01 0:00 ` Christian Hofsetz
1 sibling, 0 replies; 6+ messages in thread
From: Christian Hofsetz @ 2000-04-01 0:00 UTC (permalink / raw)
To: gcc-help
Hi,
I have a rendering software build upon GNU C++ version 2.95.1 running
on a Windows 98 Pentium III system.
It is plain C++ thus it should work in a Unix machine.
I'm trying to run it on a SGI system w/ GNU C++ version 2.91.60. All
programs
do compile and the system runs.
Amazingly, however, the images produced by the SGI are completely wrong.
How come the same software using the same compiler produces different
results? Why is it so?
And although I use a binary file as input it is not a byte alignment
problem - I've check it.
Any hints?
Thanks!
:Christian
PS.: I've also tried to use the CC compiler. It compiles, it runs, it
generates the images but, the images are wrong but... they're different
from the wrong images generate by the GNU compiled code in the same
machine... Where's my mistake?
------------------------------------------------------------------------
Christian Hofsetz University of California
Graduate Student __ ,__o
The Visualization and Graphics Group __ _-\_<,
Department of Computer Science __ (*)/'(*)
hofsetz@cs.ucdavis.edu ~~~~~~~~~~ at Davis
------------------------------------------------------------------------
USA => http://graphics.cs.ucdavis.edu/~chofsetz
BRAZIL=> http://inf.unisinos.br/~chris/index2.html
-------
Algebraic symbols are used when you don't know what you're talking about
------------------------------------------------------------------------
"Gaucho longe dos pagos esta' sempre de passagem" - Oscar Machado
------------------------------------------------------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* GNU portability?
@ 2000-01-29 0:44 Lawson Daku Max
2000-04-01 0:00 ` Lawson Daku Max
0 siblings, 1 reply; 6+ messages in thread
From: Lawson Daku Max @ 2000-01-29 0:44 UTC (permalink / raw)
To: hofsetz, gcc-help
SGI libs may be buggy (remember hearing sthing alike)
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2000-04-01 0:00 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2000-01-28 18:54 GNU portability? Christian Hofsetz
2000-01-29 14:00 ` Alexandre Oliva
2000-04-01 0:00 ` Alexandre Oliva
2000-04-01 0:00 ` Christian Hofsetz
2000-01-29 0:44 Lawson Daku Max
2000-04-01 0:00 ` Lawson Daku Max
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