https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89070
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Author: mpolacek Date: Wed Nov 13 15:59:53 2019 New Revision: 278147 URL: https://gcc.gnu.org/viewcvs?rev=278147&root=gcc&view=rev Log: PR c++/89070 - bogus [[nodiscard]] warning in SFINAE. This is a complaint that we issue a [[nodiscard]] warning even in SFINAE contexts. Here 'complain' is tf_decltype, but not tf_warning so I guess we can fix it as below. * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with tf_warning. * g++.dg/cpp1z/nodiscard7.C: New test. Added: trunk/gcc/testsuite/g++.dg/cpp1z/nodiscard7.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/cvt.c trunk/gcc/testsuite/ChangeLog
