https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88312
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Fri Jan 11 22:37:01 2019 New Revision: 267860 URL: https://gcc.gnu.org/viewcvs?rev=267860&root=gcc&view=rev Log: PR c++/88312 - pack expansion of decltype. The standard doesn't really talk about an expression depending on the number of elements of a pack, but that's definitely an important form of template argument dependence. * pt.c (instantiation_dependent_r): A template non-type parameter pack is instantiation-dependent. Added: trunk/gcc/testsuite/g++.dg/cpp0x/variadic-decltype1.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c