Comment by syncurrent
2 days ago
A way to implement coroutines in C is via protothreads. I admit that they are a bit hacky - but you can get quite far with them. I used them to implement an Esterel/Blech like environment: https://github.com/frameworklabs/proto_activities
Protothreads are amazing, but really expose you to a lot of subtle bugs. I would not recommend them for any new projects if something like async rust or an RTOS are options.