module GHC.Err
(
absentErr
, divZeroError
, overflowError
, error
, undefined
) where
#ifndef __HADDOCK__
import GHC.Types
import GHC.Exception
#endif
\end{code} %********************************************************* %* * \subsection{Error-ish functions} %* * %********************************************************* \begin{code}
error :: [Char] -> a error s = throw (ErrorCall s) undefined :: a undefined = error "Prelude.undefined"\end{code} %********************************************************* %* * \subsection{Compiler generated errors + local utils} %* * %********************************************************* Used for compiler-generated error message; encoding saves bytes of string junk. \begin{code}
absentErr :: a absentErr = error "Oops! The program has entered an `absent' argument!\n"\end{code} Divide by zero and arithmetic overflow. We put them here because they are needed relatively early in the libraries before the Exception type has been defined yet. \begin{code}
divZeroError :: a divZeroError = throw DivideByZero overflowError :: a overflowError = throw Overflow\end{code}
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