Test if externalptr object is null

Asked Dec 07 '14 at 06:06

Active Dec 08 '14 at 02:19

Viewed 42 times

How can I test from within R, without compiling custom C code, if an externalptr object is a null pointer? The best I can come up with is:

identical(capture.output(print(myptr)), "<pointer: 0x0>")

But that is kind of lame. I can do it in C, but I want to do it in R so that the user doesn't need a compiler.

edited Dec 08 '14 at 02:19

asked Dec 07 '14 at 06:06

Jeroen Ooms

1

i assume this doesn't quite do what you want http://stackoverflow.com/questions/26666614/how-do-i-check-if-an-externalptr-is-null-from-within-r ? – sckott Dec 07 '14 at 07:24
Well that is the C solution indeed. I would like something that doesn't require compiling custom C code. – Jeroen Ooms Dec 07 '14 at 20:34

0 Answers0