January 2004 - Posts

• Comment Response: Finding a Voice for a Blog

  A reader commented on my first blog entry, and my first writing about C++/CLI in over a year, stating the following RE: The Revised C++ Language Design Supporting .NET -- Part 1 12/2/2003 4:15 PM Tim Sweeney You poor, confused soul. This is actually a Read More... Posted Friday, January 30, 2004 1:24 PM by slippman | 3 Comments

• Making a Virtual Table Context-Sensitive

  In part 1 of this discussion [the January 28 th Blog entry], I pointed out a different behavior between the C++ and CLR Object Models with regard the identity of a derived polymorphic object during the construction of its base class sub-objects. Under Read More... Posted Friday, January 30, 2004 8:15 AM by slippman | 4 Comments

• Smalltalk and C++ -- a Reader Comment and Response

  A reader, Chris Hanson, writes: re: A Fundamental Difference in Class Behavior between the Native and Managed Object Model In other words, Managed C++ actually behaves like an object-oriented language, such as Smalltalk or Objective-C. An instance of Read More... Posted Thursday, January 29, 2004 8:22 AM by slippman | 1 Comments

• A Fundamental Difference in Class Behavior between the Native and Managed Object Model

  I have used two primary metaphors in my discussions of bring C++ to the .NET platform. In terms of the different physics of the two object models, I have distinguished them as Kansas and Oz, and claimed with little apparent success that the physics of Read More... Posted Wednesday, January 28, 2004 8:29 AM by slippman | 7 Comments

• Some Performance Notes on Virtual Function in ISO C++

  The elimination of the virtual mechanism in the invocation of a virtual function is in most cases trivial when measured against the elimination of any call invocation at all – that is, when the call is expanded inline. An inline expansion not only Read More... Posted Tuesday, January 27, 2004 10:50 AM by slippman | 2 Comments

• A Question of Const

  A reader, J. Daniel Smith , inquiries You wrote “The absence of const support in the base class library… “; Can you elaborate any on what the plans are for “const” as they relate to C++/CLI and C#? I know “const” Read More... Posted Thursday, January 22, 2004 9:05 AM by slippman | 6 Comments

• A Question about Multiple Inheritance Efficiency

  A reader, Johan Ericsson , comments re: Further Discussion of MI and general C++/CLI design issues I appreciate your discussion of the multiple inheritance issue. Is the performance problem of MI only inherent in virtual base clases? I've used MI in a Read More... Posted Wednesday, January 21, 2004 9:17 AM by slippman | 3 Comments

• A Question about Copy Constructors in C++/CLI

  Daniel O'Connell writes, re: Followup: The Absence of MI Hmm, Copy constructors...One would hope that the implementation and documentation is done *very* carefully(IE, marked as non-CLS compliant or implemented to work with ICloneable). I don't personally Read More... Posted Tuesday, January 20, 2004 9:05 AM by slippman | 2 Comments

• Further Discussion of MI and general C++/CLI design issues

  That same reader from the previous two posting responds as follows, with some editing. I am responding only because it gives me an excuse to speak of technical implementation issues, which I enjoy, and which readers often find interesting. With regard Read More... Posted Monday, January 19, 2004 11:04 AM by slippman | 7 Comments

• Followup: The Absence of MI

  That same reader from the previous posting now writes the following, where he quotes me and then makes his comment [this is great, by the way. this is much more engaging than the technical writing]: “There are some significant implementation and Read More... Posted Monday, January 19, 2004 8:31 AM by slippman | 6 Comments

• What about Templates and Multiple Inheritance

  A reader writes the following from the initial posting on this blog: re: The Revised C++ Language Design Supporting .NET -- Part 1 “Probably the most conspicuous and eyebrow-lifting change between the original and revised design of the dynamic programming Read More... Posted Monday, January 19, 2004 7:17 AM by slippman | 4 Comments

• C++/CLI: __try_cast<> becomes safe_cast<>

  What’s Different in the Revised Language Definition? __try_cast becomes safe_cast<> Modifying an existing structure is a much different and, in some sense, a more difficult experience than crafting the initial structure; there are fewer degrees Read More... Posted Thursday, January 08, 2004 8:34 AM by slippman | 3 Comments