https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44179
--- Comment #3 from Zack Weinberg ---
It's come to my attention that people fairly often write `sizeof('x')` (or some
other character constant), _expecting_ it to evaluate as `sizeof(char)`. But
this is only true in C++. In C, `sizeof('x')`
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108675
--- Comment #6 from Zack Weinberg ---
Note that what you (mingw) have in this header is a pretty serious
anti-optimization. Functions that call __builtin_va_start cannot be inlined
under any circumstances whatsoever (try tagging it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41233
--- Comment #10 from Zack Weinberg ---
The examples found by other people still don't demangle, though...
$ c++filt --version 2>&1 | head -n1
GNU c++filt (GNU Binutils for Debian) 2.39
$ c++filt <<\EOF
_ZNK3FooIPvEcvS_IT_EIiEEv
