Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!pasteur!yew.Berkeley.EDU!faustus
From: faustus@yew.Berkeley.EDU (Wayne Christopher)
Newsgroups: comp.lang.misc
Subject: Re: NOT Educating FORTRAN programmers to use C
Message-ID: <21318@pasteur.Berkeley.EDU>
Date: 21 Jan 90 21:42:09 GMT
Sender: news@pasteur.Berkeley.EDU
Reply-To: faustus@yew.Berkeley.EDU (Wayne Christopher)
Organization: University of California at Berkeley
Lines: 11

> Fortran permits
> optimization of procedure arguments that C must assume are aliased - no
> optimizer, no matter how sophisticated, can eliminate this difference.

What's wrong with compiling a "safe" version of the function that
assumes the arguments are aliased and a "fast" version that assumes
they are not, and deciding which one to use at runtime by comparing
the arguments?  I don't know if any compilers do this, but I've heard
the suggestion before.

	Wayne