[Rd] typeof(getOption("warn")) is "integer" instead of "double" in R unstable (2019-09-27 r77229)? Reproducible?

[Duncan Murdoch]

On 29/09/2019 7:55 a.m., nospam using altfeld-im.de wrote:
> Hi,
> 
> I have a failing unit test in my package tryCatchLog on the CRAN build infrastructure
> (https://cran.r-project.org/web/checks/check_results_tryCatchLog.html)
> with "R Under development (unstable) (2019-09-27 r77229)"
> and the unit tests just ensures consistent behaviour of R (not of my package) as a precondition:
> 
> The failing unit test is caused by
>> typeof(getOption("warn"))
>> [1] "integer"
> 
> but it should be
>> [1] "double"
> 

This is related to this bug fix:

CHANGES IN R 3.6.1 patched BUG FIXES

     ‘options(warn=1e11)’ is an error now, instead of later leading to C 
stack overflow because of infinite recursion.

which occurred in rev 77226.  It explicitly coerces the warn value to 
integer.


> I have no build infrastructure for dev and want to find out if this is caused by
> - my mistake
> - changes in the R dev version
> - the new C compilers used (correlates with the failing unit test)

It is changes in the dev and patched versions, and also your mistake: 
your test shouldn't be so stringent.  The docs don't say that the value 
has to be a double; in fact, they suggest it should be a whole number 
value (talking about 0, 1, "2 or more", not about what would happen with 
options(warn = pi/2), for example.

In older versions, options(warn = pi/2) is treated the same as 
options(warn = 1), and in the new version, it is displayed as 1 as well.

Duncan Murdoch
> 
> Can somebody (having the R dev version available) please help me and answer the result of
> 
>> typeof(getOption("warn"))
> 
> using "R Under development (unstable) (2019-09-27 r77229)" or newer?
> 
> Thanks a lot and sorry for the "noise"!
> 
> Jurgen
> 
> PS: These R (dev) versions did work as expected (returning "double") but were also using older C compilers:
> - R Under development (unstable) (2019-09-20 r77199)
> - R Under development (unstable) (2019-09-22 r77202)
> - R Under development (unstable) (2019-09-25 r77217)
> - R version 3.6.1 Patched (2019-09-25 r77224)
> - R version 3.6.1 (2019-07-05)
> - R version 3.6.0 beta (2019-04-15 r76395)
> - R version 3.5.3 (2019-03-11)
> - R version 3.5.2 (2018-12-20)
> 
> ______________________________________________
> R-devel using r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>