Making a const version of Rust's array::from_fn - How hard can it be? | Blog | Guillaume Endignoux

Writing const functions has been supported since Rust 1.31 in 2018. These functions can be evaluated at compile time, which is for example useful to shift expensive calculations before the program runs. Knowing values at compile time is also necessary for const generic parameters, a feature available since Rust 1.51 in 2021. Even though const functions have existed for 6 years, only a subset of Ru