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| Module: | System |
|---|---|
| Datatype: | ExitCode |
| Description: | The ExitCode type defines the exit codes that a program can return. ExitSuccess indicates successful termination; and ExitFailure code indicates program failure with value code. The exact interpretation of code is operating-system dependent. In particular, some values of code may be prohibited (for instance, 0 on a POSIX-compliant system). |
| Definition: | data ExitCode = ExitSuccess | ExitFailure Int deriving (Eq, Ord, Read, Show) |
| In function types: | ExitCode -> IO a : exitWith String -> IO ExitCode : system |