https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81660
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:43d3b7bc073df27800218b685e6d7dd78dd31905 commit r11-4803-g43d3b7bc073df27800218b685e6d7dd78dd31905 Author: Marek Polacek <pola...@redhat.com> Date: Thu Nov 5 21:46:06 2020 -0500 c++: Small tweak to can_convert_eh [PR81660] While messing with check_handlers_1, I spotted this bug report which complains that we don't warn about the case when we have two duplicated handlers of type int. can_convert_eh implements [except.handle] and that says: A handler is a match for an exception object of type E if - The handler is of type cv T or cv T& and E and T are the same type (ignoring the top-level cv-qualifiers), or [...] but we don't implement this bullet properly for non-class types. The fix therefore seems pretty obvious. Also change the return type to bool when we're only returning yes/no. gcc/cp/ChangeLog: PR c++/81660 * except.c (can_convert_eh): Change the return type to bool. If the type TO and FROM are the same, return true. gcc/testsuite/ChangeLog: PR c++/81660 * g++.dg/warn/Wexceptions3.C: New test. * g++.dg/eh/pr42859.C: Add dg-warning. * g++.dg/torture/pr81659.C: Likewise.
