Use cmdargs to parse command-line arguments.

[spline3.git] / src / ExitCodes.hs

diff --git a/src/ExitCodes.hs b/src/ExitCodes.hs
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+++ b/src/ExitCodes.hs
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+-- | All failure exit codes that the program can return.
+module ExitCodes
+where
+
+-- | Indicates that the command-line arguments could not be parsed.
+exit_arg_parse_failed :: Int
+exit_arg_parse_failed = 1
+
+-- | One of the arguments that should be positive wasn't.
+exit_arg_not_positive :: Int
+exit_arg_not_positive = 2
+
+-- | One of the arguments wasn't within the allowable bounds.
+exit_arg_out_of_bounds :: Int
+exit_arg_out_of_bounds = 3