Xref: utzoo comp.lang.c++:11900 comp.object:2618 comp.lang.objective-c:180
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From: sdm@cs.brown.edu (Scott Meyers)
Newsgroups: comp.lang.c++,comp.object,comp.lang.objective-c
Subject: Re: Static typing and OOP efficiency
Message-ID: <66645@brunix.UUCP>
Date: 28 Feb 91 10:16:05 GMT
References: <1991Feb16.121825.15353@gpu.utcs.utoronto.ca> <27BFDF44.3EA6@tct.uucp> <PCG.91Feb19202728@odin.cs.aber.ac.uk> <27C523A2.2155@tct.uucp> <PCG.91Feb27190941@odin.cs.aber.ac.uk>
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Reply-To: sdm@cs.brown.edu (Scott Meyers)
Organization: Brown University Department of Computer Science
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In article <PCG.91Feb27190941@odin.cs.aber.ac.uk> pcg@cs.aber.ac.uk (Piercarlo Grandi) writes:
| First, the speed on non dynamically overloaded messages is exactly the
| same in C++ and Objective C, and as you note later, this is the
| prevalent case.

Do either of you have a reference for this (presumably empirical)
observation?  Frankly, I'm skeptical.  Based purely on a seat-of-the-pants
feeling, my guess would be that the dynamic type of a pointer/reference in
C++ frequently differs from its static type, and that most function calls
are to virtual functions.  Or did I misunderstand the claim?

Scott

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