Anything that needs rewriting a memory address without losing time by allocation and garbage collection.
Handling IO exceptions and masking them as different errors.
Thread, process, or machine coordination in parallel execution.
Handling IO exceptions and masking them as different errors.
Thread, process, or machine coordination in parallel execution.
> Anything that needs rewriting a memory address without losing time by allocation and garbage collection.
ST gives you mutable references. Or just use IO.