associative array with Parallel

[seany via Digitalmars-d-learn]

Consider :

    int [] ii;
    foreach(i,dummy; parallel(somearray)) {
      ii ~= somefunc(dummy);
    }

This is not safe, because all threads are accessing the same 
array and trying to add values and leading to collision.


But :

    int [] ii;
    ii.length = somearray.length;
    foreach(i,dummy; parallel(somearray)) {
      ii[i] ~= somefunc(dummy);
    }


This is safe. In this case, threads are accessing an unique 
memory location each.

But what about this :

    int [ string ] ii;
    ii.length = somearray.length;
    foreach(i,dummy; parallel(somearray)) {
      string j = generateUniqueString(i);
      ii[j] ~= somefunc(dummy);
    }


Is this also guaranteed thread safe?


In my 5 runs, I did not see any problems, but I'd like to 
confirm. Thank you.