• __state_type : __gnu_profile
• _AlgorithmStrategy : __gnu_parallel
• _Debug_msg_id : __gnu_debug
• _Distance_precision : __gnu_debug
• _FindAlgorithm : __gnu_parallel
• _MultiwayMergeAlgorithm : __gnu_parallel
• _Parallelism : __gnu_parallel
• _PartialSumAlgorithm : __gnu_parallel
• _SortAlgorithm : __gnu_parallel
• _SplittingAlgorithm : __gnu_parallel