The LL API documentation contains a description sheet for each stable component. Each sheet describes the public interface of the component, including macros, function parameters, returned value, and thrown exceptions.

Core Components
LArray	Dynamically resizeable array
LArchiveFile	Archive file management
LChar	Character management
LDataStore	Pool of data blocks of different sizes
LSystem	System management (console I/O, etc.)
LEdgeInfo	Data associated to the edges of an LGraph
LEdgeMap	Efficient access to the edges of a LGraph
LException	Exception handling
LFile	File management
LGraph	Graph data structure
LGraphUtil	Utilities for creating and manipulating LGraph objects
LHash	Hash table
LMath	Math functions support
LMemory	Memory management
LNodeInfo	Data associated to the nodes of an LGraph
LQueue	FIFO queue data structure
LRandSource	Pseudo-random number generator
LSelect	Selection algorithms
LSort	Sorting algorithms
LStack	LIFO stack data structure
LString	String support
LTime	Time support
LType	Intrinsic types and type management
LXPBlock	Support for cross-platform data exchange