R Under development (unstable) (2023-11-25 r85635 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> ### Test is.wholenumber
> library(HyperbolicDist)
> 
> is.wholenumber(-3:5)
[1] TRUE
> is.wholenumber(c(0,0.1,1.3,5))
[1] FALSE
> is.wholenumber(-3:5 + .Machine$double.eps)
[1] TRUE
> is.wholenumber(-3:5 + .Machine$double.eps^0.5)
[1] FALSE
> is.wholenumber(c(2L,3L))
[1] TRUE
> is.wholenumber(c("2L","3L"))
[1] FALSE
> is.wholenumber(0i ^ (-3:3))
[1] FALSE
> is.wholenumber(matrix(1:6, nrow = 3))
[1] TRUE
> is.wholenumber(list(-1:3,2:6))
[1] FALSE
> is.numeric(list(-1:3,2:6))
[1] FALSE
> is.wholenumber(unlist(list(-1:3,2:6)))
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   0.10    0.06    0.15