Language
C++
Compiler
clang HEAD 9.0.0 (https://github.com/llvm-mirror/clang.git 9c0f34221d0091db37913871cdcd7b0c425d9ad9) (https://github.com/llvm-mirror/llvm.git f2fd57849926bd654366a9fc5efe5dcdb81a6dfd)
Options
Warnings
Boost 1.69.0
C++2a(GNU)
no pedantic
$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.69.0/clang-head/include -std=gnu++2a
42
Exit Code:
0