libstdc++
Namespace List
Here is a list of all documented namespaces with brief descriptions:
[detail level 123]
 N__gnu_cxxGNU extensions for public use
 N__detailImplementation details not part of the namespace __gnu_cxx interface
 NtypelistGNU typelist extensions for public compile-time use
 N__gnu_debugGNU debug classes for public use
 N__gnu_internalGNU implemenation details, not for public use or export. Used only when anonymous namespaces cannot be substituted
 N__gnu_parallelGNU parallel code for public use
 N__gnu_pbdsGNU extensions for policy-based data structures for public use
 N__gnu_profileGNU profile code for public use
 N__gnu_sequentialGNU sequential classes for public use
 NabiThe cross-vendor C++ Application Binary Interface. A namespace alias to __cxxabiv1, but user programs should use the alias 'abi'
 NstdISO C++ entities toplevel namespace is std
 N__debugGNU debug code, replaces standard behavior with debug behavior
 N__detailImplementation details not part of the namespace std interface
 N__parallelGNU parallel code, replaces standard behavior with parallel behavior
 N__profileGNU profile code, replaces standard behavior with profile behavior
 NchronoISO C++ 2011 entities sub-namespace for time and date
 NdecimalISO/IEC TR 24733 Decimal floating-point arithmetic
 NplaceholdersISO C++11 entities sub-namespace for functional
 Nregex_constantsISO C++-0x entities sub namespace for regex
 Nrel_opsThe generated relational operators are sequestered here
 Nthis_threadISO C++ 2011 entities sub-namespace for thread. 30.3.2 Namespace this_thread
 Ntr1ISO C++ TR1 entities toplevel namespace is std::tr1
 N__detailImplementation details not part of the namespace std::tr1 interface
 Ntr2ISO C++ TR2 entities toplevel namespace is std::tr2
 N__detailImplementation details not part of the namespace std::tr2 interface