R devel - Apr 2018 - packageDate() segfaults, if used without argument

Out of curiosity, I played a bit with the new function packageDate()
from April, 4th. All works fine, except using it without any argument.
In this case, it segfaults:


#> packageDate()
Error in packageDescription(pkg, lib.loc = lib.loc, fields = date.fields) :
  argument "pkg" is missing, with no default

 *** caught segfault ***
address 0x77bc3c0, cause 'memory not mapped'
Segmentation fault (core dumped)


My system is FreeBSD 12.0-CURRENT amd64 with R-devel (r74601).

Regards,
Rainer Hurling

>>>>> Rainer Hurling <rhurlin at gwdg.de>
>>>>>     on Sun, 15 Apr 2018 11:01:59 +0200 writes:
    > Out of curiosity, I played a bit with the new function
    > packageDate() from April, 4th. All works fine, except
    > using it without any argument.  In this case, it
    > segfaults:

Thank you, Rainer, for the report -- about the *development* version of R

Note that the segfault would not have happened in  'R 3.5.0 beta'
(today turning to be 'R 3.5.0 RC'  : RC := Release Candidate )
which we'd be very happy if you used extensively.

    > #> packageDate() Error in packageDescription(pkg, lib.loc
    > = lib.loc, fields = date.fields) : argument "pkg" is
    > missing, with no default

    >  *** caught segfault *** address 0x77bc3c0, cause 'memory
    > not mapped' Segmentation fault (core dumped)

    > My system is FreeBSD 12.0-CURRENT amd64 with R-devel
    > (r74601).

It was a lapsus -- of mine -- not at all related to packageDate(),
corrected yesterday (svn r 74604).

Martin

Hi Martin,

Am 16.04.2018 um 09:03 schrieb Martin Maechler:
>>>>>> Rainer Hurling <rhurlin at gwdg.de>
>>>>>>      on Sun, 15 Apr 2018 11:01:59 +0200 writes:
> 
>      > Out of curiosity, I played a bit with the new function
>      > packageDate() from April, 4th. All works fine, except
>      > using it without any argument.  In this case, it
>      > segfaults:
> 
> Thank you, Rainer, for the report -- about the *development* version of R
Yupp.
> 
> Note that the segfault would not have happened in  'R 3.5.0 beta'
> (today turning to be 'R 3.5.0 RC'  : RC := Release Candidate )
> which we'd be very happy if you used extensively.
Ah, interesting news, that this does not occur with beta and RC.
> 
>      > #> packageDate() Error in packageDescription(pkg, lib.loc
>      > = lib.loc, fields = date.fields) : argument "pkg" is
>      > missing, with no default
> 
>      >  *** caught segfault *** address 0x77bc3c0, cause 'memory
>      > not mapped' Segmentation fault (core dumped)
> 
>      > My system is FreeBSD 12.0-CURRENT amd64 with R-devel
>      > (r74601).
> 
> It was a lapsus -- of mine -- not at all related to packageDate(),
> corrected yesterday (svn r 74604).
Nice to here. Thanks for the fast response and greetings,
Rainer
> 
> Martin
>