Here is a list of all documented namespaces with brief descriptions:
[detail level 123]
| ▼N__gnu_cxx | GNU extensions for public use |
| N__detail | Implementation details not part of the namespace __gnu_cxx interface |
| Ntypelist | GNU typelist extensions for public compile-time use |
| N__gnu_debug | GNU debug classes for public use |
| N__gnu_internal | GNU implemenation details, not for public use or export. Used only when anonymous namespaces cannot be substituted |
| N__gnu_parallel | GNU parallel code for public use |
| N__gnu_pbds | GNU extensions for policy-based data structures for public use |
| N__gnu_profile | GNU profile code for public use |
| N__gnu_sequential | GNU sequential classes for public use |
| Nabi | The cross-vendor C++ Application Binary Interface. A namespace alias to __cxxabiv1, but user programs should use the alias 'abi' |
| ▼Nstd | ISO C++ entities toplevel namespace is std |
| N__debug | GNU debug code, replaces standard behavior with debug behavior |
| N__detail | Implementation details not part of the namespace std interface |
| N__parallel | GNU parallel code, replaces standard behavior with parallel behavior |
| N__profile | GNU profile code, replaces standard behavior with profile behavior |
| Nregex_constants | ISO C++-0x entities sub namespace for regex |
| Nrel_ops | The generated relational operators are sequestered here |
| ▼Ntr1 | ISO C++ TR1 entities toplevel namespace is std::tr1 |
| N__detail | Implementation details not part of the namespace std::tr1 interface |
| ▼Ntr2 | ISO C++ TR2 entities toplevel namespace is std::tr2 |
| N__detail | Implementation details not part of the namespace std::tr2 interface |