[llvm-bugs] [Bug 48402] Rejects valid subscript expression on array of unknown bound in constant expression

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48402

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WONTFIX                     |---

--- Comment #3 from Richard Smith <richard-llvm at metafoo.co.uk> ---
Yes, you're right, we should accept that first example. The case I was thinking
of was this one:

extern const int arr[];
constexpr const int (&arrref)[] = arr;
constexpr const int *p = &arrref[2];

... where we can't determine if the pointer is valid, because we don't have a
definition of the array. We do intend to accept your example; I'm not sure why
it's being rejected.

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