Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!naucse.UUCP!sbw
From: sbw@naucse.UUCP (Steve Wampler)
Newsgroups: comp.lang.icon
Subject: Re: return expressions
Message-ID: <8907102139.AA04164@naucse>
Date: 10 Jul 89 21:39:04 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: inet
Organization: The Internet
Lines: 43

On Jul 10 at  1:54, Richard Goerwitz writes:
} 
} Why doesn't the following program output "go"?
} 
} procedure main()
}   write(writeit())
} end
} 
} procedure writeit()
}   (return \stopit)
}   return "go"
} end
} 
} It looks, however, as though the expression
} 
}   return \stopit
} 
} is the same as 
} 
}   fail
} 
} at least in this instance, where \stopit fails.
} Why is this so?  Why doesn't the program simply
} print "go"?
} 
One thing to keep in mind is that 'return' is a control regime
and not an operator.  While I can see arguments for the behavior
of 'return' going either way, I prefer it the way it is, as I
more often write things like:

	return f(x)

where I want the current function to fail if f(x) fails.

You might see if the control regime

	suspend \stopit

fits with what you're trying to do...

-- 
	Steve Wampler
	{....!arizona!naucse!sbw}