R devel - Apr 2005 - RAW types not restored from Rda files (PR#7812)

Full_Name: Byron Ellis
Version: 2.1.0
OS: OS X
Submission from: (NULL) (67.124.246.46)

> x = charToRaw("12345")
> x
[1] 31 32 33 34 35
> save(x,file="x.Rda")
> rm(x)
> load("x.Rda")
> x
[1] 00 00 00 00 00

Thats no fun.

ellis@stat.harvard.edu writes:
> Full_Name: Byron Ellis
> Version: 2.1.0
> OS: OS X
> Submission from: (NULL) (67.124.246.46)
> 
> 
> > x = charToRaw("12345")
> > x
> [1] 31 32 33 34 35
> > save(x,file="x.Rda")
> > rm(x)
> > load("x.Rda")
> > x
> [1] 00 00 00 00 00
> 
> Thats no fun.
It's not happening to me though (with R-devel). Can you do a hex dump
of the x.Rda file so that we can see whether the load or the save is
failing? As in

$ od -x x.Rda
0000000 4452 3258 580a 000a 0000 0002 0202 0000
0000020 0401 0000 0400 0002 0000 0001 1000 0009
0000040 0000 7801 0000 1800 0000 0500 3231 3433
0000060 0035 0000 00fe
0000065



-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

Byron Ellis <ellis@stat.harvard.edu> writes:
> There's an endian difference, but other than that our results are
> identical:
> 
> 0000000     5244    5832    0a58    0a00    0000    0200    0202    0000
> 0000020     0104    0000    0004    0200    0000    0100    0010    0900
> 0000040     0000    0178    0000    0018    0000    0005    0000    0000
> 0000060     0000    0000    fe00
> 0000065
> 
> I updated from SVN and checked that as well, no luck. I'm a wee bit
> suspicious of saveload.c, which doesn't seem to know anything about
> RAWSXP at all.
....
> > $ od -x x.Rda
> > 0000000 4452 3258 580a 000a 0000 0002 0202 0000
> > 0000020 0401 0000 0400 0002 0000 0001 1000 0009
> > 0000040 0000 7801 0000 1800 0000 0500 3231 3433
> > 0000060 0035 0000 00fe
> > 0000065
Look closer! The "payload" is the five bytes around 0000060 and they
don't seem at all similar to me. So save() is to blame.

BTW, I'm redirecting this back to R-bugs. It is not a good idea to
take this kind of stuff to private email, for various good reasons in
general, but particularly so in this case since I don't run OSX!

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907