Why don't accept the fact someone decided to write $it, and move on with usefull comments? Enough hn this today.
The top two comment chains right now are (to paraphrase) "See, modern C++ isn't free of memory issues" and "Maybe we should rewrite it in Rust and compare".
That already happened, almost three years ago.
It's an interesting comparison point. The OP contains memory corruption bugs in C++'s standard regex library. If Rust claims to prevent these kinds of bugs, does it actually hold up to scrutiny? One way of testing that is throwing a fuzzer against a regex library written in Rust.