This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 116a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2024-12-19

1209. Is a potentially-evaluated expression in a template definition a “use?”

Consider the following complete program:

    void f();
    template<typename T> void g() { f(); }
    int main() { }

Must f() be defined to make this program well-formed? The current wording of 6.3 [basic.def.odr] does not make any special provision for expressions that appear only in uninstantiated template definitions.