Language
C++
Compiler
clang HEAD 9.0.0 (https://github.com/llvm-mirror/clang.git 3d972ea0aa9215851d4ad7461472cb98a53a1ecc) (https://github.com/llvm-mirror/llvm.git 90dd07f5c5946a3d9d6861effe3291620c88c06f)
Options
Warnings
Boost 1.70.0
C++2a(GNU)
no pedantic
$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.70.0/clang-head/include -std=gnu++2a
Exit Code:
1