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Author

anonymous

about 6 years ago

Language

C++

Compiler

gcc HEAD 10.0.0 20190520 (experimental)

Options
Warnings
Boost 1.70.0
C++2a(GNU)
no pedantic

Author

anonymous

about 6 years ago

$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.70.0/gcc-head/include -std=gnu++2a
prog.cc: In function 'int main()':
prog.cc:13:7: error: use of deleted function 'B::B()'
   13 |     B b;
      |       ^
prog.cc:6:8: note: 'B::B()' is implicitly deleted because the default definition would be ill-formed:
    6 | struct B : A
      |        ^
prog.cc:6:8: error: use of deleted function 'A::A()'
prog.cc:3:5: note: declared here
    3 |     A() = delete;
      |     ^
prog.cc:13:7: warning: unused variable 'b' [-Wunused-variable]
   13 |     B b;
      |       ^
Exit Code:
1