use_rcpp: Use C, C++, RcppArmadillo, or RcppEigen

In usethis: Automate Package and Project Setup

Use C, C++, RcppArmadillo, or RcppEigen

Description

Adds infrastructure commonly needed when using compiled code:

• Creates ⁠src/⁠

• Adds required packages to DESCRIPTION

• May create an initial placeholder .c or .cpp file

• Creates Makevars and Makevars.win files (use_rcpp_armadillo() only)

Usage

use_rcpp(name = NULL)

use_rcpp_armadillo(name = NULL)

use_rcpp_eigen(name = NULL)

use_c(name = NULL)

Arguments

name	Either a string giving a file name (without directory) or NULL to take the name from the currently open file in RStudio.

usethis documentation built on Sept. 9, 2025, 5:25 p.m.