Programmer needed to translate R programming code to C++

So this is a RandomForest machine learning program for Classification which is available in C++ and R source code. The job is to make this program to be able to do an imputation for missing data using the RandomForest algorithm in C++. Currently, there is a package in R which adds the program code to imputation. Well, the TASK is to make this additional R code in this R package in C++, so it will have an imputation program in C++ which will later be named. The way is by translating the additional R programs for imputation to C++. The code is only a sheet of R source code, I will upload later! The library needed in this R code can be changed to library C++. The difficulty: there are some default functions in R that don't exist in C++, so it must be implemented manually, for example, [login to view URL], diff, stopifnot, etc.