https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40752
--- Comment #32 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:c77074d05691053ee7347d9e44ab89b3adb23fb1 commit r10-6126-gc77074d05691053ee7347d9e44ab89b3adb23fb1 Author: Jason Merrill <ja...@redhat.com> Date: Tue Jan 7 12:20:26 2020 -0500 PR c++/40752 - useless -Wconversion with short +=. This is a longstanding issue with lots of duplicates; people are not interested in a -Wconversion warning about mychar += 1. So now that warning depends on -Warith-conversion; otherwise we only warn if operands of the arithmetic have conversion issues. * c.opt (-Warith-conversion): New. * c-warn.c (conversion_warning): Recurse for operands of operators. Only warn about the whole expression with -Warith-conversion.
