https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81102
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Sat Jun 17 02:34:08 2017 New Revision: 249332 URL: https://gcc.gnu.org/viewcvs?rev=249332&root=gcc&view=rev Log: PR c++/81102 - Wrong error with partial specialization. * pt.c (unify) [TEMPLATE_PARM_INDEX]: Strip reference when comparing types. Do type deduction later. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/template/partial-specialization7.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/pt.c branches/gcc-7-branch/gcc/testsuite/g++.dg/template/partial5.C