I'm pretty sure this is from this R-devel commit:
https://github.com/r-devel/r-svn/commit/92c1d5de23c93576f55062e26d446feface07250
This turns on stricter boundary checking, specifically see
https://github.com/lme4/lme4/issues/794#issuecomment-2154948145
Arguably, accessing an element of
Seemingly starting with the most recent builds of R-devel, I�ve been getting
segfaults related to a piece of cpp code that indexes a zero-size
NumericVector. Essentially the same as this dummy example:
```
library(Rcpp)
sourceCpp(
code = '
#include
using namespace Rcpp;
// [[Rcpp::exp
