[Issue 17771] foreach over const input range fails

[via Digitalmars-d-bugs]

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

--- Comment #6 from Steven Schveighoffer <schveiguy at yahoo.com> ---
(In reply to Eyal from comment #4)
> * Pointers are dereferenced in some contexts but not others
Not sure about this one. Perhaps an example can explain better?

> * Integers have valid init values, floats have invalid ones
And it is a cause of problems IMO, especially with generic code.

> * Arrays and slices have specific foreach behavior and not the input-range
> behavior
Again, causes lots of problems:
string s = "hello";
pragma(msg, typeof(s.front())); // immutable dchar
foreach(x; s)
   pragma(msg, typeof(x)); // immutable char

> * Tuples have special handling in the language
Since obsoleted with a better new feature (static foreach). Again, this is a
source of problems, and not meant as a model to follow.

--