[Bug c++/118263] Compiler should issue a warning when passing function pointers not marked noexcept to functions where throwing an exception in a callback function is undefined behavior

[richard.yao at alumni dot stonybrook.edu via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118263

--- Comment #2 from Richard Yao <richard.yao at alumni dot stonybrook.edu> ---
To be clear, QueueUserAPC(), WaitForSingleObjectEx() and select() on Windows
are all C ABI functions according to the WINE sources. The pointer is
technically going to QueueUserAPC(), although it is interrupting
WaitForSingleObjectEx(). Giving a pointer that can throw exceptions to a C
function can cause bad things to happen as shown by the unity.com blog post. I
assume the same should be true for C++ functions marked noexcept.