/*
 * TYPEDEF: SE_REFERENCE_SYMBOL
 *
 *   Pointer to a reference symbol. The definition of a reference symbol
 *   hidden by the implementation of this API; the user of this API
 *   simply passes in and receives back an SE_REFERENCE_SYMBOL for
 *   functions that deal with reference symbols.
 *
 *   A reference symbol allows a user to refer to an object without
 *   maintaining a handle to the object.  A user specifies how to create
 *   a reference symbol, either using the API's internal bookkeeping
 *   system or explicitly specifying an integer, string, or some blob of
 *   user-defined data as unique identifying symbolic information
 *   (see SE_CreateReferenceSymbol(), SE_CreateReferenceSymbolFromUInt32(),
 *   SE_CreateReferenceSymbolFromString(), and
 *   SE_CreateReferenceSymbolFromUserData() for details).
 */
typedef struct SE_ReferenceSymbol *SE_REFERENCE_SYMBOL;