Init from working directory of svn repository.
// list.h
// Data structures to manage LISP-like lists.
//
// As in LISP, a list can contain any type of data structure
// as an item on the list: thread control blocks,
// pending interrupts, etc. That is why each item is a "void *",
// or in other words, a "pointers to anything".
//
// Copyright (c) 1992-1993 The Regents of the University of California.
// All rights reserved. See copyright.h for copyright notice and limitation
// of liability and disclaimer of warranty provisions.
#ifndef LIST_H
#define LIST_H
#include <bool.h>
#include <stdlib.h>
// This declares the type "VoidFunctionPtr" to be a "pointer to a
// function taking an integer argument and returning nothing". With
// such a function pointer (say it is "func"), we can call it like this:
//
// (*func) (17);
//
// Used by MapCar in list.h
typedef void (*VoidFunctionPtr)(int arg);
// The following class defines a "list element" -- which is
// used to keep track of one item on a list. It is equivalent to a
// LISP cell, with a "car" ("next") pointing to the next element on the list,
// and a "cdr" ("item") pointing to the item on the list.
//
// Internal data structures kept public so that List operations can
// access them directly.
class ListElement {
public:
ListElement(void *itemPtr, int sortKey); // initialize a list element
ListElement *next; // next element on list,
// NULL if this is the last
ListElement *previous; // previous element on the list
// NULL if this is the first element
insertAfter(void *item); // insert a new item after this one
insertBefore(void *item); // insert a new item before this one
remove(void * item); // remove item with this key
int key; // priority, for a sorted list
void *item; // pointer to item on the list
};
// The following class defines a "list" -- a singly linked list of
// list elements, each of which points to a single item on the list.
//
// By using the "Sorted" functions, the list can be kept in sorted
// in increasing order by "key" in ListElement.
class List {
public:
List(); // initialize the list
~List(); // de-allocate the list
void Prepend(void *item); // Put item at the beginning of the list
void Append(void *item); // Put item at the end of the list
void *Remove(); // Take item off the front of the list
void Mapcar(VoidFunctionPtr func); // Apply "func" to every element
// on the list
bool IsEmpty(); // is the list empty?
void printList();
void insertAfter(ListElement * listEl, void *item);
void insertBefore(ListElement * listEl, void *item);
void removeAt(ListElement * listEl);
void * removeElement(void * item);
// find this item in list and remove it
// Routines to put/get items on/off list in order (sorted by key)
void Insert(void *item){SortedInsert(item,0);}
void SortedInsert(void *item, int sortKey); // Put item into list
void *SortedRemove(int *keyPtr); // Remove first item from list
int length; // Length of list
ListElement *first; // Head of the list, NULL if list is empty
ListElement *last; // Last element of list
};
#endif // LIST_H