[ESS-bugs] ESS locks up Emacs?

[Rodney Sparapani]

On 03/07/2013 02:25 PM, Rodney Sparapani wrote:
> I am not sure if this is an ESS issue or not.  Can someone try to
> replicate this lockup?  This is 100% reproducible here.
>
> I have an R file erase.R open:
>
> require(inline)
> require(RcppEigen)
>
> erase <- cxxfunction(signature(arg1="numeric", arg2="integer"),
>                       body='// erase the b-th row of a matrix
>    MatrixXd A=as< Map<MatrixXd> >(arg1), C=A;
>
>    const int b=as<int>(arg2), n=A.rows();
>
>    C.conservativeResize(n-1, A.cols());
>
>    for(int i=b; i<n; ++i) C.row(i)=A.row(i+1);

I think this is a false alarm.  That line should be...

for(int i=b; i<(n-1); ++i) C.row(i)=A.row(i+1);

But, why that would lock up Emacs and not just crash R I don't know.

-- 
Rodney Sparapani, PhD  Center for Patient Care and Outcomes Research
Sr. Biostatistician               http://www.mcw.edu/pcor
4 wheels good, 2 wheels better!   Medical College of Wisconsin (MCW)
WWLD?:  What Would Lombardi Do?   Milwaukee, WI, USA