On Fri, 04 May 2012 16:05:25 -0400, Jakob Ovrum <jakobov...@gmail.com>
wrote:
On Friday, 4 May 2012 at 19:17:13 UTC, Steven Schveighoffer wrote:
This one:
Collection c = new Collection();
c = c.filter!(x => x < 3).toCollection();
filter isn't a property of c, it's a range-producing function. So I
only have to define filter once, as a range accepting, range producing
function. And any container type, as long as it can produce a range,
can use this as a pseudo method (via UFCS) to make a filtered copy of
itself.
-Steve
That's not a real example, that's pretty much the same example I
provided below the part you quoted.
First, what would you consider a real example?
Second, there's an important piece of the use case that your sample lacks
-- Jacob is rebinding the result back to the original item.
So for example, I could see code like this:
void displayResults(Container c)
{
if(maxvalue)
c = c.filter!(x => x < maxvalue).makeContainer!Container();
// proceed to display elements from c
}
-Steve
