Sorry I could probably make a PR for this but I thought this might be quicker as it's a very small thing I spotted 😅.

In array.c on line 21 and 22, it looks like a rename went awry, and a variable that should be double_curr got renamed to float_curr (a find and replace mishap that's happened to us all at one time or another 😝).

Also on another note, I got inspired by this (why I was looking at it in the first place) and created a fork building on this code. You can find it here. Feel free to take a look (it's still very WIP and will likely have bugs or be doing something wrong in places I'm sure).

Thanks!