[Rd] Get the tail of a list in C

[maxpar]

Hi, 

I am write R extensions in C. Now I have a VECSXP variable, so how can I get
the tail of it (all but the first one) as a new VECSXP. I tried CDR(), but
it gives error. 

Thanks. 



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Re: [Rd] Get the tail of a list in C

[maxpar]

Thanks. Got it. I need differentiate pairlist and list.





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[Rd] cause 'invalid permissions'

[Maxpar Lin]

Hi folks,

I am writing a package in C. It works most of the time, but fails
occasionally by the segfault looking like:

address 0x7f55302e2700, cause 'invalid permissions'

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace

I tried gdb and it appears the application hangs at

__kernel_vsyscall ()

Since it happens randomly, I am not sure what is the exactly cause. Anyone
reached the same problem? Any point is appreciated.

Thanks.

Max

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