This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2023-01-15


2433. Variable templates in the ODR

Section: 6.3  [basic.def.odr]     Status: C++20     Submitter: Richard Smith     Date: 2019-10-10

[Adopted as a DR at the November, 2019 meeting.]

The list of entities in 6.3 [basic.def.odr] paragraph 12 that can have multiple definitions across translation units does not, but should, include variable templates.

Proposed resolution (October, 2019):

There can be more than one definition of a

in a program provided that...

[Drafting note: “with external linkage” is not needed for the inline entities because the other cases - entities attached to a named module and multiple definitions in the same translation unit - are ruled out later in that paragraph.]