[Issue 10880] foreach on matrix literal refuses immutable iteration

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=10880


monkeyworks12 at hotmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |monkeyworks12 at hotmail.com


--- Comment #3 from monkeyworks12 at hotmail.com 2013-11-20 14:25:52 PST ---
(In reply to comment #1)
> And nor should it.  As the error says, [[1]] has type int[][], and you can't
> implicitly convert int[] to immutable(int[]).
> 
> Asking for initializer-style type inference is an enhancement, and doesn't work
> particularly well with the way foreach expands to for.
> 
> Alternatives are to use const, or give the aggregate expression an explicit
> type.

In this case, isn't [[1]] a unique expression, so it can be implicitly cast to
immutable? Also, foreach (const v; [[1]]) works, but this doesn't (and it
probably should):

class Test
{
}

foreach (const v; [new Test()])

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