Path: utzoo!attcan!uunet!decwrl!sgi!shinobu!odin!thebeach.wpd.sgi.com!shap
From: shap@thebeach.wpd.sgi.com (Jonathan Shapiro)
Newsgroups: comp.std.c++
Subject: Re: aliases, ptr coercions, and optimizations
Message-ID: <11295@odin.corp.sgi.com>
Date: 2 Aug 90 18:15:35 GMT
References: <56170@microsoft.UUCP>
Sender: news@odin.corp.sgi.com
Reply-To: shap@sgi.com
Organization: Silicon Graphics, WorkGroup Products Division
Lines: 13

In article <56170@microsoft.UUCP>, jimad@microsoft.UUCP (Jim ADCOCK) writes:

> My general proposal is that C++ be very restrictive in terms of what pointer
> casts are "guaranteed" to work, allowing for maximum compiler optimizations,
> while minimizing the pointer hacks that are "guaranteed" to work.  IE,
> good C++ citizens should get well optimized code, but C++ hacker code may
> not work at all.

This is not in the spirit of the language at all.  There is nothing to
prevent the optimizer from recognizing the non-optimizable cases and
simply not optimizing them.

Jon