Author
anonymous
over 5 years ago
C++
gcc 9.2.0
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.71.0/gcc-9.2.0/include -std=gnu++2a -pedantic
prog.cc: In function 'int main()': prog.cc:16:28: warning: unused variable 'x' [-Wunused-variable] 16 | B::default_return_type x{}; | ^ 1
prog.cc: In function 'int main()': prog.cc:16:28: warning: unused variable 'x' [-Wunused-variable] 16 | B::default_return_type x{}; | ^
1