[basic.def.odr]/12 mentions inline functions, inline variables and function templates, but no variable templates. I think this is an oversight. For example, n4424 says in the introduction: "inline functions can be defined in multiple translation units (and must be defined in all translation units in which they are odr­-used), but all such definitions must be the same. The same is true (through a different mechanism) for functions and variables instantiated from templates."