so I want to make an associative array with a struct (a class would substitute, but a struct would be better):
the following code does not build with a linker error

assoc.obj(assoc)
 Error 42: Symbol Undefined __init_26TypeInfo_S5assoc9strstruct
--- errorlevel 1

and for the class, I was not sure how to define a proper hashing operator.  if I use the following snippit, the hashtable will print out 0 because the hash of bc is not the same as the hash of ac (I assume it's using pointer hashing)

I looked through the documentation to find help about this but the associative arrays section was more or less empty aside from the built in arrays and types.
I guess I could write a function that hashes and do
c[ac.myhash()]  but that's kludgy and non obvious for people coming from C++

struct strstruct {
	char []b;
}
class strclass {
	char []b;
}

int main (char[][] argv) {
	int [strclass] c;	
	int [strstruct] b;
	strstruct as,bs;
	strclass ac;
	strclass bc;
	ac= new strclass();
	bc= new strclass();
	ac.b="hello";
	bc.b="hello";
	as.b="hello";
	bs.b="hello";	
	b[bs]=3;  //comment to allow link
	printf ("%d\n",b[as]); //comment to allow link
	c[bc]=3;
	printf ("%d\n",c[ac]);	
	return 0;
}

Daniel Horn wrote:
> so I want to make an associative array with a struct (a class would substitute, but a struct would be better):
> the following code does not build with a linker error
> 
> assoc.obj(assoc)
>  Error 42: Symbol Undefined __init_26TypeInfo_S5assoc9strstruct
> --- errorlevel 1

It's been a known bug for ages.
http://www.digitalmars.com/drn-bin/wwwnews?D/23332

> and for the class, I was not sure how to define a proper hashing operator. 
<snip>

uint toHash()

Stewart.

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