R devel - Sep 1999 - Collating sequences are used inconsistently. (PR#289)

R 0.65.0 (and all others I have seen), Solaris 2.6.
> sort(c("a", "A", "b", "B"))
[1] "A" "a" "B"
"b"
> "a" < "B"
[1] FALSE

in the en_UK locale. I don't think it is good idea that sort and <
have a different idea of ordering, so I rate this as a bug. As far as I can
see sort uses strcoll and hence the locale, and < uses ASCII.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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ripley@stats.ox.ac.uk writes:
> R 0.65.0 (and all others I have seen), Solaris 2.6.
> 
> > sort(c("a", "A", "b", "B"))
> [1] "A" "a" "B" "b"
> > "a" < "B"
> [1] FALSE
> 
> in the en_UK locale. I don't think it is good idea that sort and <
> have a different idea of ordering, so I rate this as a bug. As far as I can
> see sort uses strcoll and hence the locale, and < uses ASCII.
Agreed. I did a i quick runover of all uses of strcmp in the code, and it
seems that the sign only gets used in two files, relop.c (4 times)
and in gnuwin32/dynload.c. The latter one is in a binary search of the
symbol table, which I'll assume is in ASCII order...

I'll make the changes to relop.c if you haven't done so already.

-- 
   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
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