I've wondered about just being able to pass an error closure to a function. And if you don't it'll execute a default error closure. void oops(error_t error)

I've wondered about just being able to pass an error closure to a function. And if you don't it'll execute a default error closure. void oops(error_t error) { exit(1)}; int sum = addints(a, b, .error = oops);