Darjus Hosszejni hdarjus

## Debug-Cpp-within-R.md

      
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                hdarjus
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              September 27, 2021 13:32
            
              
                Debug C++ in an R package
              
          
    Description

Feel free to share the content but please refer back to this original post whenever possible. Thanks, I appreciate it.
The code comes without warranty and no responsibility is taken. There may be typos.
Setup

Here I document my setup for debugging the C++ code of any R package. This collection of files assumes that the stochvol package is debugged. This should work with C code as well, and it does not matter whether the package uses Rcpp.
The setup uses GDB. Most importantly, the package has to be compiled with debug information and ideally with all optimizations turned off.

  
## load-Nelson-Plosser.R
library("tseries")
data("NelPlo")
View(NelPlo)

## Rcpp_vs_RcppArmadillo.R
library(Rcpp)
library(microbenchmark)

cppFunction("
NumericVector rcpp2rcpp(const NumericVector& x) {
  return x;
}",
            depends="RcppArmadillo",
            plugins="cpp11")
cppFunction("

## !Config files
From various online sources. I show the original source where I still remember, and I don't own the code here.

## !Worth knowing
Blogs, software packages, etc. I don't list really well known things here :)
	library(Rcpp)
	library(microbenchmark)

	cppFunction("
	NumericVector rcpp2rcpp(const NumericVector& x) {
	return x;
	}",
	depends="RcppArmadillo",
	plugins="cpp11")
	cppFunction("