On Mon, 11 Feb 2013 09:46:54 -0500, Dicebot <[email protected]> wrote:

This question is so stupid I am just struck with trying to chose the "good" solution.

Consider this code:

string func(in string[] args)
{
     return args.join(" "); // compile error, args is not an input range
}

It is somewhat expected as you can hardly popFront on a const range. But then question is: how can I wrap const slice into a mutable range without copying data (using standard language/library solution)? Of course, I can do .dup.join, but there is no real need to do copy, even a shallow one.

What you are looking for is a tail-const array:

string func(const(string)[] args)

This will allow traversal, and not allow modification of the elements.

-Steve

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