[barrkel]

My experience with errors is that error handling policy should be delegated to the caller. Low level parts of the stack shouldn't be handling errors; they generally don't know what to do.

A policy of handling errors usually ends up turning into a policy of wrapping errors and returning them up the stack instead. A lot of busywork.

[XorNot]

At this point I make all my functions return error even if they don't need it. You're usually one change away from discovering they actually do.