This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 117a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-04-13
1453. Volatile members in literal classes?Section: 6.8 [basic.types] Status: CD3 Submitter: Richard Smith Date: 2012-01-02[Moved to DR at the October, 2012 meeting.]
Can a literal class have a volatile member? For example,
struct S {
constexpr S() : n(0) { }
volatile int n;
};
constexpr S s; // causes volatile write to S::n
Proposed resolution (February, 2012):
Change 6.8 [basic.types] paragraph 10 as follows:
A type is a literal type if it is:
...
a class type (Clause 11 [class]) that has all the following properties:
...
all of its non-static data members and base classes are of non-volatile literal types.
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