Language
C++
Compiler
gcc HEAD 15.0.1 20250305 (experimental)
Options
Warnings
Don't Use Boost
C++2b(GNU)
no pedantic
$ g++ prog.cc -Wall -Wextra -std=gnu++2b Exit Code:
1
C++
gcc HEAD 15.0.1 20250305 (experimental)
$ g++ prog.cc -Wall -Wextra -std=gnu++2b prog.cc:13:10: error: virtual function 'virtual void Y::print(int)' overriding final function
13 | void print(int) {}
| ^~~~~
prog.cc:8:18: note: overridden function is 'virtual void X::print(int)'
8 | virtual void print(int) final {}
| ^~~~~
prog.cc:21:8: error: cannot derive from 'final' base 'A' in derived type 'B'
21 | struct B: public A
| ^