Loss of dim 2 when using field as input #351
Description
HI,
consider these 2 functions:
#include <RcppArmadillo.h>
using namespace arma;
// [[Rcpp::export]]
field<mat> fieldtest1()
{
field<mat> out(5, 6);
return out;
}
// [[Rcpp::export]]
field<mat> fieldtest2(field<mat> x)
{
return x;
}
Now consider this R code:
[R] field <- fieldtest1()
dim(field)
[1] 5 6
[R] field2 <- fieldtest2(field)
dim(field2)
[1] 30 1
fieldtest1 returns a nested list with dimensions 5,6 as expected. But fieldtest2 just imports and exports the field drop dimension 2 and returns a 30,1 list.
This Issue may be related to #263.