Presently I've Debian Squeeze(AMD64 linux), libstdc++5 and libstdc++6 on my computer.
Do these C++ libraries conform to the ISO standard C++11?
No they don't conform fully, but they have elements :
C++11 support on stdlibc++ (this is for the latest version, not the one you have)
Your best bet is to try libc++ (developed for clang but works with GCC 4.4 as well). You could try downloading and compiling the latest clang or GCC release as well.
Only MS has a fully implemented C++11 library in VC 11 (or so they claim, and yes, that doesn't help you, sorry).
来源：https://stackoverflow.com/questions/10824963/which-version-of-c-library-on-linux-conform-to-the-iso-c-11-standard