[Bug c++/65327] GCC rejects "constexpr volatile int i = 5;"

[yaghmour.shafik at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65327

Shafik Yaghmour <yaghmour.shafik at gmail dot com> changed:

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--- Comment #1 from Shafik Yaghmour <yaghmour.shafik at gmail dot com> ---
Defect report 1688:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4093.html#1688
confirms that this is valid, and it says:

"The combination is intentionally permitted and could be used in some
circumstances to force constant initialization."