> The advantages of a language that is memory safe in practice and also heavily favors correctness in general boosts productivity tenfold in the long term
As someone who has some large projects in C++ and co tribute to OSS C++ projects I find this isn't true. The big "productivity" boost I saw when using rust for some projects was that there were good rust wrappers for common libraries or they were rewritten in rust.
In C++ using the C API directly is "good enough" but because there is no nice wrapper development is slower than it should be and writing the wrapper would be significantly slower unless you expect it to be a decades long project.
When I'm not needing to build my own abstractions above a C library in C++ I find it just as productive as rust and the moment I need to touch a C library in Rust I feel even less productive than C++.
There is definitely an argument to be made about correctness in large teams being beneficial in the long run but clearly very large projects are able to keep some sanity around keeping developers in check but this is the one metric where rust has a leg up on C++ and big backers of C++ agree that it's the place C++ is sorely lacking. Every other metric isn't worth discussing unless this is fixed.
As someone who has some large projects in C++ and co tribute to OSS C++ projects I find this isn't true. The big "productivity" boost I saw when using rust for some projects was that there were good rust wrappers for common libraries or they were rewritten in rust.
In C++ using the C API directly is "good enough" but because there is no nice wrapper development is slower than it should be and writing the wrapper would be significantly slower unless you expect it to be a decades long project.
When I'm not needing to build my own abstractions above a C library in C++ I find it just as productive as rust and the moment I need to touch a C library in Rust I feel even less productive than C++.
There is definitely an argument to be made about correctness in large teams being beneficial in the long run but clearly very large projects are able to keep some sanity around keeping developers in check but this is the one metric where rust has a leg up on C++ and big backers of C++ agree that it's the place C++ is sorely lacking. Every other metric isn't worth discussing unless this is fixed.