Article: Writing Julia style multiple dispatch code in D

[data pulverizer via Digitalmars-d-announce]

On Wednesday, 30 August 2017 at 22:10:38 UTC, Jean-Louis Leroy 
wrote:
> On Wednesday, 30 August 2017 at 21:30:29 UTC, data pulverizer 
> wrote:
>> In the light of this I think your package just became more 
>> interesting to me.
>
> I think that your work and mine are complementary :-)

Yes, one of the problems I have been trying to solve is the best 
way of writing a table structure similar to a data frame in R. 
Till now polymorphism never really appealed to me but with your 
package writing methods for such structures become much nicer, a 
simple prototype could be this:

```
import std.stdio: writeln;

class GenericVector{}
class Vector(T): GenericVector{
	T[] data;
	this(T[] data)
	{
		this.data = data;
	}
}

void main()
{
	GenericVector[] myTable = [new Vector!double([1., 2., 3.]), new 
Vector!string(["a", "b", "c"])];
	writeln(typeid(myTable[0]));
	writeln(typeid(myTable[1]));
}
```

Then your openmethods package can dispatch on these types of 
objects. Very cool!