GCC version 4.6.3 and its compliance to C++ standards

sourcery-i686-pc-linux-gnu (Sourcery CodeBench Lite 2012.03-27) uses GCC version 4.6.3

http://gcc.gnu.org/onlinedocs/gcc-4.6.3/gcc/Standards.html#Standards

GCC version 4.6.3 supports the ISO C++ standard (1998) and contains experimental support for the ISO C++ standard (200x).  GCC  version 4.6.3 implements the majority of C++98 (export is a notable exception) and most of the changes in C++03.

Latest GCC Release Series is GCC 4.8.2 (changes) released [2013-10-16]  http://gcc.gnu.org/

How to enable C11 on GCC ?

-std=c11 is the option to do so, but it is not available in GCC 4.6.3.
With GCC 4.7.x -std=c1x experimental support for C11 is available.

Standardization

http://en.wikipedia.org/wiki/C%2B%2B#Standardization
Year           C++ Standard                                       Informal name
1998         ISO/IEC 14882:1998[18]             C++98
2003         ISO/IEC 14882:2003[19]             C++03
2007        ISO/IEC TR 19768:2007[20]      C++TR1
2011        ISO/IEC 14882:2011[21]              C++11

To purchase standards documents-> http://webstore.ansi.org/