...aggregates don't inherit
                   |pure nothrow from outer     |pure, @nogc, nothrow from
                   |scope                       |outer scope

--

...way for inner layers to refer to outer layers, otherwise you severely limit the capabilities...

...that a range-of-ranges where the outer range uses lvalue elements will consume all...

...outer range by-ref, it will consume all the inner ranges *but not the outer...

...to use foreach to loop through the outer range and print out each inner range...

...by un-reffing the elements of the outer array: `writeln(mdarr.map!(e => e));`

So...

...to create a nested template with an outer template that takes a tuple for this...

And...

class Outer
{
    Inner newInner()
    {
        return new Inner();
    }

    class Inner
    {
        private(this) this() //  Error: class...

...choose not to use private(this).

class Outer
{
    private(this) int m;

    class Inner
    {
        private...

...testcase.d(21): Error: escaping reference to outer local variable `_errStr`

Deprecation appeared in dmd...