https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84768
--- Comment #4 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Tue Apr 3 17:53:05 2018 New Revision: 259049 URL: https://gcc.gnu.org/viewcvs?rev=259049&root=gcc&view=rev Log: /cp 2018-04-03 Paolo Carlini <paolo.carl...@oracle.com> PR c++/84768 * pt.c (rewrite_template_parm): If the first argument is error_mark_node return it immediately. (build_deduction_guide): Check the return value of the latter for error_mark_node. (do_class_deduction): Check the return value of the latter. /testsuite 2018-04-03 Paolo Carlini <paolo.carl...@oracle.com> PR c++/84768 * g++.dg/cpp1z/class-deduction52.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp1z/class-deduction52.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c trunk/gcc/testsuite/ChangeLog
