[Issue 15982] std.array.array treats dynamic arrays as input ranges and allocates new memory

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15982

--- Comment #6 from ag0aep6g at gmail.com ---
(In reply to ag0aep6g from comment #5)
> Here's a little generic function that relies on std.array.array's current
> behavior:
> ----
> immutable(ElementType!R)[] toImmutableArray(R)(R range)
>     if (isInputRange!R && !hasIndirections!(ElementType!R))
> {
>     import std.array: array;
>     import std.exception: assumeUnique;
>     return assumeUnique(range.array);
> }
> ----

Missing imports:
----
import std.range: ElementType, isInputRange;
import std.traits: hasIndirections;
----

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