• bearophile (7/7) Jan 04 2008 The "lambda the ultimate" blog often shows interesting articles:
• Bruce Adams (10/18) Jan 05 2008 Support for multi-dispatch is one thing I'm hoping to see in a future
• Robert Fraser (4/29) Jan 06 2008 I prefer the MultiJava syntax meself:

bearophile <bearophileHUGS lycos.com> writes:

The "lambda the ultimate" blog often shows interesting articles:

"Open Multi-Methods for C++", by Peter Pirkelbauer, Yuriy Solodkyy, and Bjarne
Stroustrup:
http://lambda-the-ultimate.org/node/2590
http://www.research.att.com/~bs/multimethods.pdf

They seem fast enough too.

Bye,
bearophile

"Bruce Adams" <tortoise_74 yeah.who.co.uk> writes:

On Fri, 04 Jan 2008 12:34:05 -0000, bearophile <bearophileHUGS lycos.com>  
wrote:

 The "lambda the ultimate" blog often shows interesting articles:

 "Open Multi-Methods for C++", by Peter Pirkelbauer, Yuriy Solodkyy, and  
 Bjarne Stroustrup:
 http://lambda-the-ultimate.org/node/2590
 http://www.research.att.com/~bs/multimethods.pdf

 They seem fast enough too.

 Bye,
 bearophile

Support for multi-dispatch is one thing I'm hoping to see in a future  
iteration of D.
To summarise the paper they propose a syntax for open methods (which are  
free functions)
as opposed to multi-methods using virtual as an argument qualifier.

bool intersect(virtual Shape&, virtual Shape&); // open−method
bool intersect(virtual Rectangle&, virtual Circle&);

This doesn't look a bad solution for either C++ or D2.x/3.x.

Robert Fraser <fraserofthenight gmail.com> writes:

Bruce Adams wrote:
 On Fri, 04 Jan 2008 12:34:05 -0000, bearophile 
 <bearophileHUGS lycos.com> wrote:
 
 The "lambda the ultimate" blog often shows interesting articles:

 "Open Multi-Methods for C++", by Peter Pirkelbauer, Yuriy Solodkyy, 
 and Bjarne Stroustrup:
 http://lambda-the-ultimate.org/node/2590
 http://www.research.att.com/~bs/multimethods.pdf

 They seem fast enough too.

 Bye,
 bearophile

 
 Support for multi-dispatch is one thing I'm hoping to see in a future 
 iteration of D.
 To summarise the paper they propose a syntax for open methods (which are 
 free functions)
 as opposed to multi-methods using virtual as an argument qualifier.
 
 bool intersect(virtual Shape&, virtual Shape&); // open−method
 bool intersect(virtual Rectangle&, virtual Circle&);
 
 This doesn't look a bad solution for either C++ or D2.x/3.x.

I prefer the MultiJava syntax meself:

boolean intersect(Shape s1, Shape s2);
boolean intersect(Shape Rectangle s1, Shape Circle s2);