Contents

OSOrderFunction

The sorting function used by an OSOrderedSet to order objects.

Declaration

typedef SInt32 ( *OSOrderFunction)(
   const OSMetaClassBase *obj1,
   const OSMetaClassBase *obj2,
   void *context);

Parameters

  • obj1:

    An object from the ordered set. May be NULL.

  • obj2:

    The object being ordered within the ordered set. May be NULL.

  • context:

    A pointer to a user-provided context. May be NULL.

Return Value

A comparison result of the object:

  • a negative value if obj2 should precede obj1,

  • a positive value if obj1 should precede obj2,

  • and 0 if obj1 and obj2 have an equivalent ordering.