Mercurial > hg > early-roguelike
view rogue5/list.c @ 104:fbc75509f4cd
Add config.h to the list of headers in the Makefiles.
Some .o files need to be rebuilt if config.h changes. Adding it to the
list of headers may still fail to solve the problem, because some of
the Makefiles use implicit rules or do not list dependencies properly.
author | John "Elwin" Edwards |
---|---|
date | Tue, 03 Sep 2013 14:14:48 -0700 |
parents | f502bf60e6e4 |
children |
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/* * Functions for dealing with linked lists of goodies * * @(#)list.c 4.12 (Berkeley) 02/05/99 * * Rogue: Exploring the Dungeons of Doom * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman * All rights reserved. * * See the file LICENSE.TXT for full copyright and licensing information. */ #include <stdlib.h> #include <curses.h> #include "rogue.h" #ifdef MASTER int total = 0; /* total dynamic memory bytes */ #endif /* * detach: * takes an item out of whatever linked list it might be in */ void _detach(THING **list, THING *item) { if (*list == item) *list = next(item); if (prev(item) != NULL) item->l_prev->l_next = next(item); if (next(item) != NULL) item->l_next->l_prev = prev(item); item->l_next = NULL; item->l_prev = NULL; } /* * _attach: * add an item to the head of a list */ void _attach(THING **list, THING *item) { if (*list != NULL) { item->l_next = *list; (*list)->l_prev = item; item->l_prev = NULL; } else { item->l_next = NULL; item->l_prev = NULL; } *list = item; } /* * _free_list: * Throw the whole blamed thing away */ void _free_list(THING **ptr) { THING *item; while (*ptr != NULL) { item = *ptr; *ptr = next(item); discard(item); } } /* * discard: * Free up an item */ void discard(THING *item) { #ifdef MASTER total--; #endif free(item); } /* * new_item * Get a new item with a specified size */ THING * new_item(void) { THING *item; if ((item = calloc(1, sizeof *item)) == NULL) { #ifdef MASTER msg("ran out of memory after %d items", total); #endif return NULL; } #ifdef MASTER total++; #endif item->l_next = NULL; item->l_prev = NULL; return item; }