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Author

anonymous

over 5 years ago

Language

C++

Compiler

clang HEAD 10.0.0 (https://github.com/llvm-mirror/clang.git 65acf43270ea2894dffa0d0b292b92402f80c8cb) (https://github.com/llvm-mirror/llvm.git 2c4ca6832fa6b306ee6a7010bfb80a3f2596f824)

Options
Warnings
Boost 1.71.0
C++11
-pedantic-errors
Raw compiler options
-Wfatal-errors -stdlib=libc++

Author

anonymous

over 5 years ago

$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.71.0/clang-head/include -std=c++11 -pedantic-errors -Wfatal-errors -stdlib=libc++ 
prog.cc:4:17: fatal error: incomplete type 'C' named in nested name specifier
    friend void C::dec(A&);
                ^~~
prog.cc:1:7: note: forward declaration of 'C'
class C;
      ^
1 error generated.
Exit Code:
1