bglenden@mandrill.cv.nrao.edu (Brian Glendenning) (11/24/90)
Suppose you have some ieee data loaded onto disk from an nfs mounted
sun (say). The bytes would be in the wrong order for the Decstation
(thank you DEC).
Does anyone have a working routine to unjumble them for the DEC (both
directions would be great). The source I have doesn't seem to work
properly...
Thanks!
Brian
--
Brian Glendenning - National Radio Astronomy Observatory
bglenden@nrao.edu bglenden@nrao.bitnet (804) 296-0286mf@ircam.fr (Michel Fingerhut) (11/25/90)
Use xdr - library routines for external data representation.
From the man page:
These routines allow C programmers to describe arbitrary
data structures in a machine-independent fashion. Data for
remote procedure calls are transmitted using these routines.grr@cbmvax.commodore.com (George Robbins) (11/26/90)
In article <1990Nov24.201244.7225@ircam.fr> mf@ircam.fr (Michel Fingerhut) writes: > Use xdr - library routines for external data representation. Except Ultrix floating point XDR is broken in Ultrix 3.X... I think this is supposed to be fixed in 4.X, but I'm not so sure. -- George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr but no way officially representing: domain: grr@cbmvax.commodore.com Commodore, Engineering Department phone: 215-431-9349 (only by moonlite)
bglenden@mandrill.cv.nrao.edu (Brian Glendenning) (11/26/90)
In article <1990Nov24.201244.7225@ircam.fr> mf@ircam.fr (Michel Fingerhut) writes:
Use xdr - library routines for external data representation.
From the man page:
These routines allow C programmers to describe arbitrary
data structures in a machine-independent fashion. Data for
remote procedure calls are transmitted using these routines.
Alas, I actually need source. Any such would be greatly appreciated!
--
Brian Glendenning - National Radio Astronomy Observatory
bglenden@nrao.edu bglenden@nrao.bitnet (804) 296-0286p554mve@mpirbn.mpifr-bonn.mpg.de (Michael van Elst) (11/27/90)
In article <1990Nov24.201244.7225@ircam.fr> mf@ircam.fr (Michel Fingerhut) writes: >Use xdr - library routines for external data representation. Except for xdr_float/xdr_double is broken in Ultrix3.1 Regards, -- Michael van Elst UUCP: universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve Internet: p554mve@mpirbn.mpifr-bonn.mpg.de "A potential Snark may lurk in every tree."
hoyt@wreck.alf.dec.com (Kurt Hoyt) (11/27/90)
In article <1395@mpirbn.mpifr-bonn.mpg.de>, p554mve@mpirbn.mpifr-bonn.mpg.de (Michael van Elst) writes: |> In article <1990Nov24.201244.7225@ircam.fr> mf@ircam.fr (Michel Fingerhut) writes: |> >Use xdr - library routines for external data representation. |> |> Except for xdr_float/xdr_double is broken in Ultrix3.1 This problem has been fixed in ULTRIX 4.0. The xdr_float.c file has ifdefs to tell it whether you are using VAX or IEEE floating point. In xdr_float and xdr_double, the floating point format was determined by this construct: #ifdef mc68000 ...IEEE code... #else ...VAX code... #endif If you weren't a Motorola 68000, the routine thought you were a VAX. Since the MIPS chip is not a 68000, xdr_float incorrectly considered it a VAX. -- Kurt in Atlanta | Atlanta hoyt@decatl.alf.dec.com | Site of the 1996 Olympics hoyt@wreck.alf.dec.com |