[Haskell-cafe] exitFailure under forkProcess
jgoerzen at complete.org
Tue Oct 26 17:29:21 EDT 2004
I'm having a little weird situation here.
Whenever I call exitFailure under forkProcess, I get:
(progname): forkProcess: uncaught exception
main = forkProcess exitFailure
If you remove the forkProcess call, the program properly silently exits
with exit code 1.
I have no idea why it is displaying this message to stderr when called
under forkProcess. I argue that it shouldn't. It is perfectly valid to
return with an error code from a child process, and absolutely necessary
in some cases when your later waitpid() call needs to know what
happened. (Or, in Haskell, getProcessStatus()).
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