Getting a working example of opIndexAssign using opSlice ... have troubles ...

[james.p.leblanc via Digitalmars-d-learn]

Greetings,

I have been trying to get a working example of slice assignment 
operator
overloading ... and am befuddled.  From the spec (section 
20.6.2), the
code below appears:
    struct A
    {
        int opIndexAssign(int v);  // overloads a[] = v
        int opIndexAssign(int v, size_t[2] x);  // overloads a[i 
.. j] = v
        int[2] opSlice(size_t x, size_t y);     // overloads i .. 
j
    }

    void test()
    {
        A a;
        int v;

        a[] = v;  // same as a.opIndexAssign(v);
        a[3..4] = v;  // same as a.opIndexAssign(v, 
a.opSlice(3,4));
    }

I have hacked at this trying to get a simple working example.  
Could
anyone guide me here please?

Best Regards,
James