This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 117b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-08-11
2242. ODR violation with constant initialization possibly omittedSection: 6.3 [basic.def.odr] Status: C++23 Submitter: Hubert Tong Date: 2016-03-05[Accepted as a DR at the November, 2022 meeting.]
Consider the following example:
// tu1.cpp
extern const int a = 1;
inline auto f() {
static const int b = a;
struct A { auto operator()() { return &b; } } a;
return a;
}
// tu2.cpp
extern const int a;
inline auto f() {
static const int b = a;
struct A { auto operator()() { return &b; } } a;
return a;
}
int main() {
return *decltype(f())()();
}
Here, b may or may not have constant initialization. This example should be an ODR violation.
(Split off from issue 2123.)
Proposed resolution (approved by CWG 2022-11-11):
Insert after 6.3 [basic.def.odr] bullet 14.7 as follows:
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4