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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: question on exceptions
Date: 1996/11/09
Message-ID: <dewar.847601627@merv>#1/1
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references: <dewar.847504661@merv> <E0MAEK.EGs.0.-s@inmet.camb.inmet.com>
 <E0Mr58.D00@world.std.com>
organization: New York University
newsgroups: comp.lang.ada
Date: 1996-11-09T00:00:00+00:00
List-Id: <comp.lang.ada>


Bob Duff says

"Think about implementation difficulty.  One reason people advocated a
"plain old function" was to make it easy to implement.  But if that
function has special rules, then the compiler has to special-case it
anyway, so it's probably even *harder* to implement it."

Absolutely! Implementing the DEC package Current_Exception which is, on the
face of it, a collection of "plain old fujnctions", is a major pain, and
the front end of the compiler has to know all sorts of special things 
about the functions in this package.