BSD-licensed Clang implements ALL of the ISO C++ 2011 standard

BSD-licensed Clang implements ALL of the ISO C++ 2011 standard.

http://clang.llvm.org/cxx_status.html

LLVM has been awarded the 2012 ACM Software System Award! This award is given by ACM to one software system worldwide every year.

libc++ that ships with clang/LLVM infrastructure has production ready features for concurrency like atomic types and operations and relaxed memory ordering and fences. Other notable mentions are regular expressions and type traits among others.

These are exciting times to learn C++11 with upcoming 'go native' focus of all the commercial vendors from Google to Microsoft.

it is also a great option for those projects and companies who do not want to pay Larry "Shylock" Ellison Tax !