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))
> 
> same = function(test, truth) stopifnot(all.equal(dbl(test), truth, tol=1e-6))
> 
> x = matrix(1:30, 10, 3)
> s = fl(x)
> 
> test = sweep(s, 1, STATS=1L, FUN='+')
> truth = sweep(x, 1, STATS=1L, FUN='+')
> same(test, truth)
> 
> test = sweep(s, 1, STATS=1L, FUN='-')
> truth = sweep(x, 1, STATS=1L, FUN='-')
> same(test, truth)
> 
> test = sweep(s, 1, STATS=1L, FUN='*')
> truth = sweep(x, 1, STATS=1L, FUN='*')
> same(test, truth)
> 
> test = sweep(s, 1, STATS=1L, FUN='/')
> truth = sweep(x, 1, STATS=1L, FUN='/')
> same(test, truth)
> 
> 
> 
> test = sweep(s, 1, STATS=1:5, FUN='-')
> truth = sweep(x, 1, STATS=1:5, FUN='-')
> same(test, truth)
> 
> 
> 
> test = sweep(s, 2, STATS=1:3, FUN='-')
> truth = sweep(x, 2, STATS=1:3, FUN='-')
> same(test, truth)
> 
> 
> 
> test = sweep(s, 1, STATS=fl(pi), FUN='+')
> truth = sweep(x, 1, STATS=pi, FUN='+')
> same(test, truth)
> 
> proc.time()
   user  system elapsed 
   0.28    0.07    0.34