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* 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

* GNU portability?
  2000-01-29  0:44 GNU portability? Lawson Daku Max
@ 2000-04-01  0:00 ` Lawson Daku Max
  0 siblings, 0 replies; 6+ messages in thread
From: Lawson Daku Max @ 2000-04-01  0:00 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

* GNU portability?
  2000-01-28 18:54 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

* 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

* Re: GNU portability?
  2000-01-28 18:54 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

* 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

end of thread, other threads:[~2000-04-01  0:00 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2000-01-29  0:44 GNU portability? Lawson Daku Max
2000-04-01  0:00 ` Lawson Daku Max
  -- strict thread matches above, loose matches on Subject: below --
2000-01-28 18:54 Christian Hofsetz
2000-01-29 14:00 ` Alexandre Oliva
2000-04-01  0:00   ` Alexandre Oliva
2000-04-01  0:00 ` Christian Hofsetz

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