[Issue 17771] foreach over const input range fails

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17771

Steven Schveighoffer <schveiguy at yahoo.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |schveiguy at yahoo.com
         Resolution|---                         |INVALID

--- Comment #1 from Steven Schveighoffer <schveiguy at yahoo.com> ---
1. foreach (and D in general) doesn't attempt to change any attributes, it
simply makes a copy via:

auto _r = range;

2. Ranges aren't always copyable to non-const versions implicitly.

So you need to do this yourself or cast:

foreach(x; cast() r)

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