On Mon, 2 May 2022, 13:26 Marc Glisse via Gcc, <gcc@gcc.gnu.org> wrote:
> On Mon, 2 May 2022, Boris Kolpackov wrote: > > > Jakub Jelinek <ja...@redhat.com> writes: > > > >> The first release candidate for GCC 12.1 is available [...] > > > > There is an unfixed bogus warning that is a regression in 12 > > and that I think will have a pretty wide effect (any code > > that assigns/appends a 1-char string literal to std::string): > > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105329 > > > > For example, in my relatively small codebase I had about 20 > > instances of this warning. Seeing that it's enabled as part > > of -Wall (not just -Wextra), I believe there will be a lot > > of grumpy users. > > > > There is a proposed work around in this (duplicate) bug that > > looks pretty simple: > > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104336 > > > > Perhaps it makes sense to consider it? > > Please no, that workaround looks like a fragile hack (basically writing > a+b-a to obfuscate b) that may break if you look at it sideways and likely > makes the generated code a bit worse. Agreed. And it makes the variable names completely misleading (although that would be easy to fix).
