[R] Strange behaviour of R?

[Martin Maechler]

>>>>> Sigbert Klinke 
>>>>>     on Fri, 17 Jan 2020 09:21:59 +0100 writes:

    > Hi,
    > Am 17.01.20 um 08:42 schrieb Rainer M Krug:
    >> Not for me - macOS, R 3.6.2

    > Sorry, I forgot to add: Ubuntu 18.04.3 LTS, R 3.6.2

Sorry but that's very hard to believe, i.e.,
that such fundamental R behavior would depend on the exact OS
version ... unless you did compile (and link) R yourself *and*
are using somewhat peculiar compiler / linker / ... settings ?


Context : 

	> I wrote a function like

	> test <- function(FUN, args) {
	>    print(FUN)
	>    FUN(args)
	> }

	> When I call it lieke this

	> test(mean, 1:10)
	> test(NULL, 1:10)

	> then the second call still uses mean, although I set FUN to NULL. Is 
	> that ok?

definitely not ok, and also not reproducible for me.