[Rcpp-devel] ambiguous overload for ‘operator[]’
You're mixing NumericVectors, std::vectors, and XPtrs, not to mention using plain C's memcpy to copy C++ objects. Even if it compiled, I'd be surprised if this code worked correctly. If you want to copy pdA into v, you should probably use std::copy with iterators (with v as the target, not pdB). Telling v's constructor the size to pre-allocate would be good, too. Davor
On 2010-10-27, at 3:22 PM, Kaveh Vakili wrote:
trying to feed the beast something line by line (if this works to the end it may become an instance of quickselect() :)
int k = Rcpp::as<int>(kr);
NumericVector pdA(pdAr);
int n = pdA.size();
//this:
//double *pdB = new double [n] ;
//becomes this?
std::vector<double>* v = new std::vector<double>;
Rcpp::XPtr< std::vector<double> > pdB(v) ;
double dAx, dBuffer ;
int l = 0, lr = n - 1, jnc, j ;
memcpy (pdB, pdA, n * sizeof (double)) ;
while (l < lr){
dAx = pdB[k];
This last line gives:
filef9889ff.cpp:45: error: ambiguous overload for ?operator[]? in ?pdB[k]?
Also, i patched together the piece i found on the examples/tests so fare...probably a strange patchwork for you :)
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