Print debugging has its place. Sure, it’s not always the best way to debug something, but it can often be the fastest. In this post I describe a useful way to do this in Rust and how we can get similar behaviour in R. I love the Rust dbg! macro - it wraps a value or expression and prints the result to help debug what’s happening in the middle of some function. If we had some complicated function that combined some values, e.g. fn f(val1: i32, val2: i32) -> i32 { // do some things let othe...
