Hi there,

So I've just stated learning D. Playing with associative arrays, I wrote this simple function. No big deal.

void associativeArrayFu(){
	ulong[string] arr;
	arr["foo"]=1;
	arr["bar"]=2;
	arr["foo"]=45;
	
	foreach( thing;arr.sort){
		writeln( thing );
		}
	}

Compiles and runs just fine.
Stating to have a bunch of funtions in one file, I reorganised my sources among several files (in the same project in Eclipse).

Now the same function yelds this error when compiling:

Error: no property 'sort' for type 'ulong[string]'

wether it is in a source file alongside other functions, alone in its own file, or even all alone in its own project.

Not that I care that much about this poor function, but I am puzzled. What did I miss ?

And oh, maybe this is not the right place for a beginner ? Is there any better place ?

On Sunday, 20 October 2013 at 14:50:52 UTC, Derix wrote:
> Hi there,
>
> So I've just stated learning D. Playing with associative arrays, I wrote this simple function. No big deal.
>
> void associativeArrayFu(){
> 	ulong[string] arr;
> 	arr["foo"]=1;
> 	arr["bar"]=2;
> 	arr["foo"]=45;
> 	
> 	foreach( thing;arr.sort){
> 		writeln( thing );
> 		}
> 	}
>
> Compiles and runs just fine.
> Stating to have a bunch of funtions in one file, I reorganised my sources among several files (in the same project in Eclipse).
>
> Now the same function yelds this error when compiling:
>
> Error: no property 'sort' for type 'ulong[string]'
>
> wether it is in a source file alongside other functions, alone in its own file, or even all alone in its own project.
>
> Not that I care that much about this poor function, but I am puzzled. What did I miss ?

Associative arrays are not sortable and have no defined order of element pairs. You can get an array of its values and sort that, by using the `values` property:

---
import std.algorithm : sort;
import std.stdio : writeln;

foreach(value; aa.values.sort())
{
    writeln(value);
}
---

> And oh, maybe this is not the right place for a beginner ? Is there any better place ?

The D.learn group is the most appropriate for these kinds of questions :)

> Associative arrays are not sortable and have no defined order of element pairs.
Yep, that's definitely the point that I missed.

>You can get an array of its values and sort
> that, by using the `values` property:
> ---
> import std.algorithm : sort;
> import std.stdio : writeln;
>
> foreach(value; aa.values.sort())
> {
>     writeln(value);
> }
> ---

OK, I get the idea. I am still a bit removed from navigating the numerous libraries, but I'll guess I'll get used to it.

>> And oh, maybe this is not the right place for a beginner ? Is there any better place ?
>
> The D.learn group is the most appropriate for these kinds of questions :)

Yep, found out later that it was right in front of me, d'oh ;-)


thanks a lot for your spot-on answers !