Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 123]

Nflow
CArenaMemoryResource	A linear arena memory resource that allocates memory sequentially from a fixed buffer. Throws std::bad_alloc if there is insufficient space for the requested allocation
CBinaryHeap	A binary min-heap container. Supports custom comparator and allocator
CConcurrentFlexQueue	A thread-safe concurrent queue with flexible push and pop operations
CNode
CConcurrentQueue
CCountedValueViewIterator	Iterator that returns a constant value a fixed number of times. Useful for creating a virtual range of repeated values without overhead
CDebugClass	Debug class to track copy/move operations. Some operations may be optimized away in release builds
CDefaultMemoryResource	A default memory resource that wraps global ::operator new and ::operator delete
CMemoryResource	A memory resource holder interface for the PolymorphicAllocator. Responsible for allocate and deallocate raw memory
CMultiQueueThreadPool	A work-stealing multiqueue threadpool. Each worker thread has a thread_local task queue to reduce thread contention
CPolymorphicAllocator	Polymorphic allocator wrapping a non-owning memory resource. Allocation strategy depends on the memory resource implementation
CPoolMemoryResource	A pool memory resource that manages fixed-size memory blocks from a pre-allocated buffer. The allocation size must be less or equal to the block size. The allocation alignment must be less or equal to the block alignment. Throws std::bad_alloc if the constraint is not met or run out of memory
CHeader
CSimpleThreadPool	A simple thread pool with fixed number of worker threads. All the threads poll tasks from a single queue. If all the threads are waiting, then the user must manually call runPendingTask() to resolve deadlock
CStackMemoryResource	A stack-based memory resource that allocates memory in a LIFO order from a fixed buffer. Deallocation must happen in reverse order of allocation. Throws std::bad_alloc if there is insufficient space for an allocation
CHeader
CThreadTask	A task that can be execute by a thread. Internally, it uses type erasure to store a std::packaged_task. The memory is managed by std::unique_ptr
CThreadTaskImp
CThreadTaskInterface
CTimer	A simple timer to record timelapses. Uses steady_clock by default
CTuple
CTuple< T, Ts... >
CVector
CVectorGrowthStrategy
CDoubleExpand
CFibonacciExpand
CGoldenExpand
CWorkStealingQueue