https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101098
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:8b273a8566e7806e9498c78b16c30c9d81d6e81b commit r11-8716-g8b273a8566e7806e9498c78b16c30c9d81d6e81b Author: Jason Merrill <ja...@redhat.com> Date: Fri Jul 9 13:50:01 2021 -0400 c++: concepts TS and explicit specialization [PR101098] duplicate_decls was not recognizing the explicit specialization as matching the implicit specialization of g<Y> because function_requirements_equivalent_p was seeing the C constraint on the implicit one and not on the explicit. PR c++/101098 gcc/cp/ChangeLog: * decl.c (function_requirements_equivalent_p): Only compare trailing requirements on a specialization. gcc/testsuite/ChangeLog: * g++.dg/concepts/explicit-spec1.C: New test.
