I want to understand which version of clang Apple installed in my macbook, to see with c++11 and/or c++14 features are available. I typed this command:
clang
If you installed clion, in it's preference-toolchains, you might see 'debugger' as bundled LLDB 7.0.1.
I believe this is the current Apple clang version. (eg.Apple LLVM version 10.0.1)