Is there anywhere that describes what Kenji (it was Kenji wasn't it?) recently implemented for this?

On Wednesday, 6 August 2014 at 08:48:25 UTC, John Colvin wrote:
> Is there anywhere that describes what Kenji (it was Kenji wasn't it?) recently implemented for this?

I'm curious about this as well. I've just come across a case where I need to work with a 2D array of channels*samples from an analog-digital converter, and what I thought would be a straightforward design problem turned out to be pretty complicated. I have a C++ solution but its procedural/oop. Going functional and range-based would be a huge improvement, but I'm caught in "analysis paralysis."

On Wed, Aug 06, 2014 at 06:10:43PM +0000, Vlad Levenfeld via Digitalmars-d-learn wrote:
> On Wednesday, 6 August 2014 at 08:48:25 UTC, John Colvin wrote:
> >Is there anywhere that describes what Kenji (it was Kenji wasn't it?)
> >recently implemented for this?
> 
> I'm curious about this as well. I've just come across a case where I need to work with a 2D array of channels*samples from an analog-digital converter, and what I thought would be a straightforward design problem turned out to be pretty complicated. I have a C++ solution but its procedural/oop. Going functional and range-based would be a huge improvement, but I'm caught in "analysis paralysis."

AFAIK, what Kenji implemented was just the support necessary for implementing a multidimensional array type with overloaded opIndex / opSlice / opDollar. I don't think there's any functional / range-based things actually built on top of this at present.  I'm also quite interested in this topic, and several people in the past have also voiced similar interests. But I don't think we have anything standard just yet.

In any case, what Kenji did was basically to implement support for:

	arr[i,j,k,...];		// opIndex
	arr[i,j,k,...] = ...;	// opIndexAssign
	arr[i1 .. i2, j1 .. j2, ...];	// opSlice
	arr[i..$, j..$, k..$];	// opSlice / opDollar

and perhaps one or two others.

And, looking at the docs on dlang.org, evidently this feature isn't documented yet. :-(  Maybe if I get some free time later today I'll take a shot at documenting it.


T

-- 
What do you call optometrist jokes? Vitreous humor.

On Wed, Aug 06, 2014 at 11:21:51AM -0700, H. S. Teoh via Digitalmars-d-learn wrote: [...]
> In any case, what Kenji did was basically to implement support for:
> 
> 	arr[i,j,k,...];		// opIndex
> 	arr[i,j,k,...] = ...;	// opIndexAssign
> 	arr[i1 .. i2, j1 .. j2, ...];	// opSlice
> 	arr[i..$, j..$, k..$];	// opSlice / opDollar
> 
> and perhaps one or two others.

OK, found the pull that implemented this, which also has a description of what was implemented:

	https://github.com/D-Programming-Language/dmd/pull/443

I'll see if I can cook up a PR to incorporate this into the language docs on dlang.org.


T

-- 
Heuristics are bug-ridden by definition. If they didn't have bugs, they'd be algorithms.

On Wednesday, 6 August 2014 at 08:48:25 UTC, John Colvin wrote:
> Is there anywhere that describes what Kenji (it was Kenji wasn't it?) recently implemented for this?

Not what you asked for, but maybe useful nonetheless: Denis Shelomovskij has written a multidimensional array implementation using the new syntax[1]. I've been using it in my code for a while now and it's been working great so far.

[1] http://denis-sh.bitbucket.org/unstandard/unstd.multidimarray.html

On Wed, Aug 06, 2014 at 08:48:24AM +0000, John Colvin via Digitalmars-d-learn wrote:
> Is there anywhere that describes what Kenji (it was Kenji wasn't it?)
> recently implemented for this?

https://github.com/D-Programming-Language/dlang.org/pull/625


--T

On Wed, Aug 06, 2014 at 12:16:57PM -0700, H. S. Teoh via Digitalmars-d-learn wrote:
> On Wed, Aug 06, 2014 at 11:21:51AM -0700, H. S. Teoh via Digitalmars-d-learn wrote: [...]
> > In any case, what Kenji did was basically to implement support for:
> > 
> > 	arr[i,j,k,...];		// opIndex
> > 	arr[i,j,k,...] = ...;	// opIndexAssign
> > 	arr[i1 .. i2, j1 .. j2, ...];	// opSlice
> > 	arr[i..$, j..$, k..$];	// opSlice / opDollar
> > 
> > and perhaps one or two others.
> 
> OK, found the pull that implemented this, which also has a description of what was implemented:
> 
> 	https://github.com/D-Programming-Language/dmd/pull/443
> 
> I'll see if I can cook up a PR to incorporate this into the language docs on dlang.org.
[...]

https://github.com/D-Programming-Language/dlang.org/pull/625


T

-- 
What is Matter, what is Mind? Never Mind, it doesn't Matter.