Safe Haskell	Safe-Inferred
Language	Haskell2010

HaskellWorks.Unsafe

Synopsis

error :: HasCallStack => [Char] -> a
undefined :: HasCallStack => a

Documentation

error :: HasCallStack => [Char] -> a #

error stops execution and displays an error message.

undefined :: HasCallStack => a #

A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.