This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 114a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2024-04-18

169. template-ids in using-declarations

Section: 9.9  [namespace.udecl]     Status: NAD     Submitter: Valentin Bonnard     Date: 16 Sep 1999

9.9 [namespace.udecl]s ays,

A using-declaration shall not name a template-id.
It is not clear whether this prohibition applies to the entity for which the using-declaration is a synonym or to any name that appears in the using-declaration. For example, is the following code well-formed? 
    template <typename T>
    struct base {
	void bar ();
    };

    struct der : base<int>
    {
	using base<int>::bar; // ill-formed ?
    };

Rationale (10/99): 9.9 [namespace.udecl] paragraph 1 says, "A using-declaration introduces a name..." It is the name that is thus introduced that cannot be a template-id.