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)
> 
> sd = stats::sd
> 
> ### uniform
> s = flrunif(500)
> x = dbl(s)
> stopifnot(min(x) >= 0)
> stopifnot(max(x) <= 1)
> 
> s = flrunif(500, min=50, max=60)
> x = dbl(s)
> stopifnot(min(x) >= 50)
> stopifnot(max(x) <= 60)
> 
> m = 10L
> n = 5L
> s = flrunif(m, n)
> stopifnot(identical(dim(s), c(m, n))) 
> 
> 
> ### normal
> s = flrnorm(5000)
> x = dbl(s)
> stopifnot(abs(mean(x)-0) < 1e-1)
> stopifnot(abs(sd(x)-1) < 1e-1)
> 
> 
> s = flrnorm(5000, mean=10, sd=5)
> x = dbl(s)
> stopifnot(abs(mean(x)-10) < 1e-1)
> stopifnot(abs(sd(x)-5) < 1e-1)
> 
> m = 5L
> n = 10L
> s = flrnorm(m, n)
> stopifnot(identical(dim(s), c(m, n))) 
> 
> proc.time()
   user  system elapsed 
   0.28    0.06    0.34