R Under development (unstable) (2023-12-09 r85665 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> suppressPackageStartupMessages(library(float))
> set.seed(1234)
> 
> tol = 1e-6
> m = 10
> n = 3
> 
> x = matrix(stats::rnorm(m*n), m, n)
> s = fl(x)
> 
> type = "O"
> test = dbl(norm(s, type))
> truth = norm(x, type)
> stopifnot(all.equal(test, truth, tol=tol))
> 
> type = "I"
> test = dbl(norm(s, type))
> truth = norm(x, type)
> stopifnot(all.equal(test, truth, tol=tol))
> 
> type = "F"
> test = dbl(norm(s, type))
> truth = norm(x, type)
> stopifnot(all.equal(test, truth, tol=tol))
> 
> type = "M"
> test = dbl(norm(s, type))
> truth = norm(x, type)
> stopifnot(all.equal(test, truth, tol=tol))
> 
> type = "2"
> test = dbl(norm(s, type))
> truth = norm(x, type)
> stopifnot(all.equal(test, truth, tol=tol))
> 
> proc.time()
   user  system elapsed 
   0.32    0.03    0.34