libstdc++ Chapter 28. Demangling example

[Jonny Grant]

Hello

I tried out this code. Maybe I'm doing something wrong?

https://godbolt.org/z/Y78h4f1W6

https://gcc.gnu.org/onlinedocs/gcc-12.2.0/libstdc++/manual/manual/ext_demangling.html

However only get reduced output after status -2 is returned:

std::bad_exception	=> 

Looks like std::cout gets broken by the nullptr realname (that's a frustration). So I put an if(realname) in the godbolt link above.

Maybe it's also a good time to update the example abi::__cxa_demangle call from those 0 parameters to be NULL?

Cheers, Jonny