[R-pkg-devel] unicode WARNING on solaris?

[Tomas Kalibera]

On 9/24/19 1:57 AM, Toby Hocking wrote:
> Hi all,
>
> is there a known fix for this WARNING which I am getting on solaris for my
> newly submitted nc package?
> https://www.r-project.org/nosvn/R.check/r-patched-solaris-x86/nc-00check.html

It seems that deparse() came across some non-printable characters. Such 
characters would be replaced by \U or \u escapes. This is implemented 
using wide characters in R, but on that platform __STDC_ISO_10646__ is 
not defined, so wchar_t has unknown representation (not known to be 
Unicode), hence the warning.

Best
Tomas

>
> A quick google search for "it is not known that wchar_t is Unicode on this
> platform cran" shows that many other packages have this WARNING as well.
>
> I searched r-devel and r-pkg-devel for the warning text but I did not find
> any messages discussing a fix.
>
> Thanks for any help
> Toby
>
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