Mac gcc/g++/clang++ compilers for programming in c++

Question

I have a programming class that has a requirement for making the code successfully compile on gcc/g++ 4.8.x or clang++. I'm running mac OSX el capitan at the moment.

$ g++ --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr -- 
with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 7.3.0 (clang-703.0.31)
Target: x86_64-apple-darwin15.6.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

This is the clang++ output:

$ clang++ --version
Apple LLVM version 7.3.0 (clang-703.0.31)
Target: x86_64-apple-darwin15.6.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

Would this suffice for the requirements for my class? If not how would I go about updating them?

Thank you!