• Kagamin <spam here.lot> Oct 14 2009
• "Lars T. Kyllingstad" <public kyllingen.NOSPAMnet> Oct 14 2009
• Kagamin <spam here.lot> Oct 14 2009
• Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> Oct 14 2009
• "Robert Jacques" <sandford jhu.edu> Oct 14 2009

Kagamin <spam here.lot> writes:

Robert Jacques Wrote:

 Also needed is an extension of the opDollar to return different values  
 based on the index:
 opDollar(size_t index);


Dollar is just a synonym for length, isn't it?

"Lars T. Kyllingstad" <public kyllingen.NOSPAMnet> writes:

Kagamin wrote:
 Robert Jacques Wrote:
 
 Also needed is an extension of the opDollar to return different values  
 based on the index:
 opDollar(size_t index);


 Dollar is just a synonym for length, isn't it?



Yes, but if opIndex and opSlice take multiple indices (like in a matrix) 
opDollar needs a way to distinguish between the different dimensions.

-Lars

Kagamin <spam here.lot> writes:

Lars T. Kyllingstad Wrote:

 Yes, but if opIndex and opSlice take multiple indices (like in a matrix) 
 opDollar needs a way to distinguish between the different dimensions.


size_t length(size_t idx);

Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:

Lars T. Kyllingstad wrote:
 Kagamin wrote:
 Robert Jacques Wrote:

 Also needed is an extension of the opDollar to return different 
 values  based on the index:
 opDollar(size_t index);


 Dollar is just a synonym for length, isn't it?


 
 Yes, but if opIndex and opSlice take multiple indices (like in a matrix) 
 opDollar needs a way to distinguish between the different dimensions.
 
 -Lars


I think the compiler should rewrite $ to __currentarray.length in unary 
index expressions, and to __currentarray.length!(n) in multiple index 
expressions.

Andrei

"Robert Jacques" <sandford jhu.edu> writes:

On Wed, 14 Oct 2009 06:11:22 -0400, Kagamin <spam here.lot> wrote:

 Robert Jacques Wrote:

 Also needed is an extension of the opDollar to return different values
 based on the index:
 opDollar(size_t index);


 Dollar is just a synonym for length, isn't it?


User types can also override Dollar, though I don't remember off the top  
of my head how.