R Under development (unstable) (2023-12-13 r85679 ucrt) -- "Unsuffered Consequences"
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> 
>  library(rcdd)
If you want correct answers, use rational arithmetic.
See the Warnings sections in help pages for
    functions that do computational geometry.
> 
>  # needed because now uses R RNG for matrix row permutation
>  set.seed(42)
> 
>  d <- 4
>  qux <- makeH(- diag(d), rep(0, d), rep(1, d), 1)
>  print(qux)
     [,1] [,2] [,3] [,4] [,5] [,6]
[1,]    1    1   -1   -1   -1   -1
[2,]    0    0    1    0    0    0
[3,]    0    0    0    1    0    0
[4,]    0    0    0    0    1    0
[5,]    0    0    0    0    0    1
attr(,"representation")
[1] "H"
> 
>  out <- scdd(qux)
>  print(out)
$output
     [,1] [,2] [,3] [,4] [,5] [,6]
[1,]    0    1    0    0    0    1
[2,]    0    1    0    0    1    0
[3,]    0    1    0    1    0    0
[4,]    0    1    1    0    0    0
attr(,"representation")
[1] "V"

> 
>  out <- scdd(out$output)
>  print(out)
$output
     [,1] [,2] [,3] [,4] [,5] [,6]
[1,]    0    1   -1   -1   -1    0
[2,]    0    0    1    0    0    0
[3,]    0    0    0    1    0    0
[4,]    0    0    0    0    1    0
[5,]    1   -1    1    1    1    1
attr(,"representation")
[1] "H"

> 
>  out <- scdd(qux, roworder = "randomrow")
>  print(out)
$output
     [,1] [,2] [,3] [,4] [,5] [,6]
[1,]    0    1    0    0    1    0
[2,]    0    1    1    0    0    0
[3,]    0    1    0    1    0    0
[4,]    0    1    0    0    0    1
attr(,"representation")
[1] "V"

> 
>  out <- scdd(qux, roworder = "maxcutoff")
>  print(out)
$output
     [,1] [,2] [,3] [,4] [,5] [,6]
[1,]    0    1    1    0    0    0
[2,]    0    1    0    1    0    0
[3,]    0    1    0    0    1    0
[4,]    0    1    0    0    0    1
attr(,"representation")
[1] "V"

> 
> 
> proc.time()
   user  system elapsed 
   0.10    0.06    0.15