# <!-- rdoc-file=cont.c -->
# Raised when an invalid operation is attempted on a Fiber, in particular when
# attempting to call/resume a dead fiber, attempting to yield from the root
# fiber, or calling a fiber across threads.
#
#     fiber = Fiber.new{}
#     fiber.resume #=> nil
#     fiber.resume #=> FiberError: dead fiber called
#
class FiberError < StandardError
end