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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.52 by root, Tue Apr 17 10:06:32 2007 UTC vs.
Revision 1.74 by root, Sun Apr 20 05:24:55 2008 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 16 * GNU General Public License for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 20 *
22 * The authors can be reached via e-mail at <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
25#include <cassert> 24#include <cassert>
26 25
27#include <global.h> 26#include <global.h>
29#include <loader.h> 28#include <loader.h>
30 29
31#include <tr1/functional> 30#include <tr1/functional>
32#include <tr1/unordered_map> 31#include <tr1/unordered_map>
33 32
34/* The naming of these functions is really poor - they are all
35 * pretty much named '.._arch_...', but they may more may not
36 * return archetypes. Some make the arch_to_object call, and thus
37 * return an object. Perhaps those should be called 'archob' functions
38 * to denote they return an object derived from the archetype.
39 * MSW 2003-04-29
40 */
41
42bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing 33archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing
34arch_ptr archetype::empty;
43 35
44// the hashtable 36// the hashtable
45typedef std::tr1::unordered_map 37typedef std::tr1::unordered_map
46 < 38 <
47 const char *, 39 const char *,
49 str_hash, 41 str_hash,
50 str_equal, 42 str_equal,
51 slice_allocator< std::pair<const char *const, arch_ptr> > 43 slice_allocator< std::pair<const char *const, arch_ptr> >
52 > HT; 44 > HT;
53 45
54static HT ht (5000); 46static HT ht (10000);
47archvec archetypes;
48static unordered_vector<archetype *> allarch;
49static int dirtycnt;
50
51// the vector of other_arch references to be resolved
52static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
53// the vector of loaded but not yet committed archetypes
55static std::vector<archetype *> archetypes; 54static std::vector<archetype *> postponed_arch;
56 55
57/** 56/**
58 * GROS - This function retrieves an archetype given the name that appears 57 * GROS - This function retrieves an archetype given the name that appears
59 * during the game (for example, "writing pen" instead of "stylus"). 58 * during the game (for example, "writing pen" instead of "stylus").
60 * It does not use the hashtable system, but browse the whole archlist each time. 59 * It does not use the hashtable system, but browse the whole archlist each time.
68archetype * 67archetype *
69find_archetype_by_object_name (const char *name) 68find_archetype_by_object_name (const char *name)
70{ 69{
71 shstr_cmp name_cmp (name); 70 shstr_cmp name_cmp (name);
72 71
73 for (archetype *at = first_archetype; at; at = at->next) 72 for_all_archetypes (at)
74 if (at->clone.name == name_cmp) 73 if (at->name == name_cmp)
75 return at; 74 return at;
76 75
77 return 0; 76 return 0;
78} 77}
79 78
85archetype * 84archetype *
86find_archetype_by_object_type_name (int type, const char *name) 85find_archetype_by_object_type_name (int type, const char *name)
87{ 86{
88 shstr_cmp name_cmp (name); 87 shstr_cmp name_cmp (name);
89 88
90 for (archetype *at = first_archetype; at; at = at->next) 89 for_all_archetypes (at)
91 if (at->clone.name == name_cmp && at->clone.type == type) 90 if (at->name == name_cmp && at->type == type)
92 return at; 91 return at;
93 92
94 return 0; 93 return 0;
95} 94}
96 95
102object * 101object *
103get_archetype_by_skill_name (const char *skill, int type) 102get_archetype_by_skill_name (const char *skill, int type)
104{ 103{
105 shstr_cmp skill_cmp (skill); 104 shstr_cmp skill_cmp (skill);
106 105
107 for (archetype *at = first_archetype; at; at = at->next) 106 for_all_archetypes (at)
108 if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) 107 if (at->skill == skill_cmp && (type == -1 || type == at->type))
109 return arch_to_object (at); 108 return arch_to_object (at);
110 109
111 return 0; 110 return 0;
112} 111}
113 112
119 * (eg, skills) 118 * (eg, skills)
120 */ 119 */
121archetype * 120archetype *
122get_archetype_by_type_subtype (int type, int subtype) 121get_archetype_by_type_subtype (int type, int subtype)
123{ 122{
124 for (archetype *at = first_archetype; at; at = at->next) 123 for_all_archetypes (at)
125 if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) 124 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
126 return at; 125 return at;
127 126
128 return 0; 127 return 0;
129} 128}
130 129
157 } 156 }
158 157
159 return create_singularity (name); 158 return create_singularity (name);
160} 159}
161 160
162 /* This is a subset of the parse_id command. Basically, name can be 161/* This is a subset of the parse_id command. Basically, name can be
163 * a string seperated lists of things to match, with certain keywords. 162 * a string seperated lists of things to match, with certain keywords.
164 * pl is the player (only needed to set count properly) 163 * pl is the player (only needed to set count properly)
165 * op is the item we are trying to match. Calling function takes care 164 * op is the item we are trying to match. Calling function takes care
166 * of what action might need to be done and if it is valid 165 * of what action might need to be done and if it is valid
167 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher 166 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher
168 * value means a better match. 0 means no match. 167 * value means a better match. 0 means no match.
169 * 168 *
170 * Brief outline of the procedure: 169 * Brief outline of the procedure:
171 * We take apart the name variable into the individual components. 170 * We take apart the name variable into the individual components.
172 * cases for 'all' and unpaid are pretty obvious. 171 * cases for 'all' and unpaid are pretty obvious.
173 * Next, we check for a count (either specified in name, or in the 172 * Next, we check for a count (either specified in name, or in the
174 * player object.) 173 * player object.)
175 * If count is 1, make a quick check on the name. 174 * If count is 1, make a quick check on the name.
176 * IF count is >1, we need to make plural name. Return if match. 175 * IF count is >1, we need to make plural name. Return if match.
177 * Last, make a check on the full name. 176 * Last, make a check on the full name.
178 */ 177 */
179int 178int
180item_matched_string (object *pl, object *op, const char *name) 179item_matched_string (object *pl, object *op, const char *name)
181{ 180{
182 char *cp, local_name[MAX_BUF]; 181 char *cp, local_name[MAX_BUF];
183 int count, retval = 0; 182 int count, retval = 0;
275 } 274 }
276 275
277 return 0; 276 return 0;
278} 277}
279 278
280archetype::archetype () 279archetype::archetype (const char *name)
281{ 280{
282 clone.arch = this; 281 arch = this;
283 282 this->archname = this->name = this->name_pl = name;
284 CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */
285 SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
286} 283}
287 284
288archetype::~archetype () 285archetype::~archetype ()
289{ 286{
290 //TODO: nuke ->more's 287 unlink ();
291} 288}
292 289
293static void
294unlink (archetype *at)
295{
296 if (at->head)
297 at = at->head;
298
299 // destroy this archetype's link, making singletons out of its parts
300 while (at)
301 {
302 archetype *more = at->more;
303 at->clone.destroy_inv ();
304 at->head = at->more = 0;
305 at = more;
306 }
307}
308
309// dire hack, need to rationalise
310void 290void
311overwrite (archetype *at, object *op) 291archetype::link ()
312{ 292{
313 at->clone = *op; 293 if (!archetypes.contains (this))
314 294 {
315 at->clone.arch = at; 295 archetypes.insert (this);
316 at->clone.inv = op->inv; op->inv = 0; 296 ht.insert (std::make_pair (archname, this));
317 297 }
318 op->destroy ();
319} 298}
320 299
321bool 300void
301archetype::unlink ()
302{
303 if (archetypes.contains (this))
304 {
305 archetypes.erase (this);
306 ht.erase (archname);
307 }
308}
309
310/*
311 * Finds, using the hashtable, which archetype matches the given name.
312 * returns a pointer to the found archetype, otherwise NULL.
313 */
314archetype *
315archetype::find (const char *name)
316{
317 if (!name)
318 return 0;
319
320 auto (i, ht.find (name));
321
322 if (i == ht.end ())
323 return 0;
324 else
325 return i->second;
326}
327
328archetype *
322archetype::load (object_thawer &f) 329archetype::read (object_thawer &f)
323{ 330{
324 assert (f.kw == KW_object); 331 assert (f.kw == KW_object);
325 332
326 typedef std::pair<archetype *, object *> part;
327 std::vector<part> parts; 333 std::vector<archetype *> parts;
328 334
329 coroapi::cede_to_tick_every (100); 335 coroapi::cede_to_tick ();
330 336
331 for (;;) 337 for (;;)
332 { 338 {
333 archetype *at = get (f.get_str ()); 339 archetype *at = new archetype (f.get_str ());
334 object *op = object::create ();
335 340
341 f.next ();
342
343#if 0
344 // implementing it here in the server does neither allow multiple inheritence
345 // nor does it cleanly "just override". it would allow use in map files, though,
346 // and other resource files dynamically laoded (as opposed to being preprocessed).
347 // not that any of this is relevant as of yet...
348 if (f.kw == KW_inherit)
349 {
350 if (archetype *at = find (f.get_str ()))
351 *op = at->clone;
352 else
353 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
354 &at->archname, f.get_str ());
355
356 f.next ();
357 }
358#endif
359
360 loading_arch = at; // hack to tell parse_kv et al. to behave
361 bool parse_ok = at->parse_kv (f);
362 loading_arch = 0;
363
336 if (!op->parse_kv (f)) 364 if (!parse_ok)
337 goto fail; 365 goto fail;
338 366
339 parts.push_back (std::make_pair (at, op)); 367 loading_arch = at; // hack to tell parse_kv et al. to behave
368 at->post_load_check ();
369 loading_arch = 0;
370
371 parts.push_back (at);
340 372
341 if (f.kw != KW_more) 373 if (f.kw != KW_more)
342 break; 374 break;
343 375
344 f.next (); 376 f.next ();
377
345 assert (f.kw == KW_object); 378 if (f.kw != KW_object)
379 {
380 f.parse_error ("more object");
381 goto fail;
382 }
346 } 383 }
347 384
348 { 385 {
386 auto (at, parts.begin ());
387
349 archetype *head = parts.front ().first; 388 archetype *new_head = parts.front ();
389 archetype *old_head = find (new_head->archname);
350 390
351 // check that all archetypes belong to the same object or are heads 391 if (old_head && !old_head->is_head ())
352 for (auto (p, parts.begin ()); p != parts.end (); ++p)
353 { 392 {
354 archetype *at = p->first; 393 LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
394 &new_head->archname, &old_head->archname);
395 goto fail;
396 }
355 397
356 if (at->head != head && at->head) 398 // check that all archetypes belong to the same old object or are new
399 for (auto (at, parts.begin ()); at != parts.end (); ++at)
400 {
401 archetype *new_part = *at;
402 archetype *old_part = find (new_part->archname);
403
404 if (old_part && old_part->head_ () != old_head)
357 { 405 {
358 LOG (llevError, "%s: unable to overwrite foreign non-head archetype with non-head archetype\n", &at->name); 406 LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
359 goto fail; 407 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
360 }
361
362 if (at->next && at != head)
363 {
364 LOG (llevError, "%s: unable to overwrite foreign head archetype with non-head archetype\n", &at->name);
365 goto fail; 408 goto fail;
366 } 409 }
367 } 410 }
368 411
369 // sever chain of existing head object
370 for (archetype *more, *at = head; at; at = more)
371 {
372 more = at->more;
373
374 at->head = 0;
375 at->more = 0;
376 }
377
378 // replace/update head
379 overwrite (head, parts.front ().second);
380 head->tail_x = 0;
381 head->tail_y = 0;
382
383 // link into list of heads, if not already there
384 if (!head->linked)
385 {
386 head->linked = true;
387 head->next = first_archetype;
388 first_archetype = head;
389 }
390
391 // reassemble new chain 412 // assemble new chain
413 new_head->min_x = new_head->max_x = new_head->x;
414 new_head->min_y = new_head->max_y = new_head->y;
415
392 archetype *prev = head; 416 archetype *less = new_head;
393 for (auto (p, parts.begin () + 1); p != parts.end (); ++p) 417 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
394 { 418 {
395 archetype *at = p->first; 419 archetype *at = *p;
396 overwrite (at, p->second);
397 420
398 if (at->clone.x > head->tail_x) head->tail_x = at->clone.x; 421 // some flags get inherited from the head (probably a lot more)
399 if (at->clone.y > head->tail_y) head->tail_y = at->clone.y; 422 // doing it here doesn't feel too cozy, but it allows code
423 // to ignore head checks for these flags, which saves time
424 at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
425 at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
426 at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
427 at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
400 428
429 new_head->min_x = min (new_head->min_x, at->x);
430 new_head->min_y = min (new_head->min_y, at->y);
431 new_head->max_x = max (new_head->max_x, at->x);
432 new_head->max_y = max (new_head->max_y, at->y);
433
401 at->head = head; 434 at->head = new_head;
402 at->clone.head = &head->clone;
403 prev->more = at; 435 less->more = at;
404 prev->clone.more = &at->clone;
405
406 prev = at; 436 less = at;
407 } 437 }
438
439 postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
440
441 return new_head;
408 } 442 }
409
410 return true;
411 443
412fail: 444fail:
413 for (auto (p, parts.begin ()); p != parts.end (); ++p) 445 for (auto (p, parts.begin ()); p != parts.end (); ++p)
414 p->second->destroy (true); 446 (*p)->destroy (true);
415 447
416 return false; 448 return 0;
417} 449}
418 450
419/* 451void
420 * Reads/parses the archetype-file, and copies into a linked list 452archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
421 * of archetype-structures.
422 */
423static bool
424load_archetypes (object_thawer &f)
425{ 453{
426 for (;;) 454 ref = 0;
455 postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
456}
457
458void
459archetype::commit_load ()
460{
461 // unlink old archetypes and link in new ones */
462 for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
463 {
464 archetype *at = *p;
465
466 if (archetype *old = find (at->archname))
467 old->unlink ();
468
469 allarch.push_back (at);
470
471 at->link ();
472 ++dirtycnt;
427 { 473 }
428 switch (f.kw) 474
475 postponed_arch.clear ();
476
477 // now resolve arch references
478 for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
479 {
480 arch_ptr *ap = p->first;
481 archetype *at = find (p->second);
482
483 if (!at)
484 LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
485
486 *ap = at;
487 }
488
489 postponed_arch_ref.clear ();
490
491 empty = find (shstr_empty_archetype);
492}
493
494void
495archetype::gc ()
496{
497 int cnt = max (1, min (allarch.size () / 128, dirtycnt));
498 dirtycnt = max (0, dirtycnt - cnt);
499
500 do
501 {
502 static int idx;
503
504 if (idx >= allarch.size ())
505 if (idx)
506 idx = 0;
507 else
508 return;
509
510 archetype *at = allarch [idx];
511
512 if (at->refcnt_cnt () > 1) // all arches have ONE refcount from their object
513 ++idx;
514 else
429 { 515 {
430 case KW_object: 516 LOG (llevDebug, "garbage collect arch %s", at->debug_desc ());
431 loading_arch = true; 517 assert (at->arch == at); // verify that refcnt == 1 is truely valid
432 if (!archetype::load (f)) 518 allarch.erase (idx);
433 { 519 at->arch = 0;
434 loading_arch = false; 520 at->more = 0;
435 return false; 521 at->destroy ();
436 }
437
438 loading_arch = false;
439 continue;
440
441 case KW_EOF:
442 return true;
443
444 default:
445 if (!f.parse_error ("archetypes file"))
446 return false;
447 } 522 }
448
449 f.next ();
450 } 523 }
451} 524 while (--cnt);
452
453/*
454 * First initialises the archtype hash-table (init_archetable()).
455 * Reads and parses the archetype file (with the first and second-pass
456 * functions).
457 */
458bool
459load_archetype_file (const char *filename)
460{
461 object_thawer f (filename);
462
463 f.next ();
464
465 if (!load_archetypes (f))
466 return false;
467
468 warn_archetypes = 1;
469
470 empty_archetype = archetype::find ("empty_archetype");
471 if (!empty_archetype)
472 return false;
473
474 return true;
475} 525}
476 526
477/* 527/*
478 * Creates and returns a new object which is a copy of the given archetype. 528 * Creates and returns a new object which is a copy of the given archetype.
479 * This function returns NULL on failure. 529 * This function returns NULL on failure.
481object * 531object *
482arch_to_object (archetype *at) 532arch_to_object (archetype *at)
483{ 533{
484 if (!at) 534 if (!at)
485 { 535 {
486 if (warn_archetypes)
487 LOG (llevError, "Couldn't find archetype.\n"); 536 LOG (llevError, "Couldn't find archetype.\n");
488
489 return NULL; 537 return 0;
490 } 538 }
491 539
492 object *op = at->clone.clone (); 540 object *op = at->clone ();
493 op->arch = at; 541 op->arch = at;
494 op->instantiate (); 542 op->instantiate ();
543
495 return op; 544 return op;
545}
546
547object *
548archetype::instance ()
549{
550 return arch_to_object (this);
496} 551}
497 552
498/* 553/*
499 * Creates an object. This function is called by get_archetype() 554 * Creates an object. This function is called by get_archetype()
500 * if it fails to find the appropriate archetype. 555 * if it fails to find the appropriate archetype.
502 * an object, and never NULL. 557 * an object, and never NULL.
503 */ 558 */
504object * 559object *
505create_singularity (const char *name) 560create_singularity (const char *name)
506{ 561{
507 object *op; 562 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
563
564 if (!strcmp (name, "bug"))
565 abort ();
566
508 char buf[MAX_BUF]; 567 char buf[MAX_BUF];
568 sprintf (buf, "bug, please report (%s)", name);
509 569
510 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 570 object *op = get_archetype ("bug");
511 op = object::create ();
512 op->name = op->name_pl = buf; 571 op->name = op->name_pl = buf;
513 SET_FLAG (op, FLAG_NO_PICK); 572
514 return op; 573 return op;
515} 574}
516 575
517/* 576/*
518 * Finds which archetype matches the given name, and returns a new 577 * Finds which archetype matches the given name, and returns a new
528 587
529 return arch_to_object (at); 588 return arch_to_object (at);
530} 589}
531 590
532/* 591/*
533 * Finds, using the hashtable, which archetype matches the given name.
534 * returns a pointer to the found archetype, otherwise NULL.
535 */
536archetype *
537archetype::find (const char *name)
538{
539 if (!name)
540 return 0;
541
542 auto (i, ht.find (name));
543
544 if (i == ht.end ())
545 return 0;
546 else
547 return i->second;
548}
549
550archetype *
551archetype::get (const char *name)
552{
553 archetype *at = find (name);
554
555 if (!at)
556 {
557 archetypes.push_back (at = new archetype);
558 at->name = name;
559 at->hash_add ();
560 }
561
562 return at;
563}
564
565/*
566 * Adds an archetype to the hashtable.
567 */
568void
569archetype::hash_add ()
570{
571 ht.insert (std::make_pair (name, this));
572}
573
574void
575archetype::hash_del ()
576{
577 ht.erase (name);
578}
579
580/*
581 * Returns the first archetype using the given type. 592 * Returns the first archetype using the given type.
582 * Used in treasure-generation. 593 * Used in treasure-generation.
583 */ 594 */
584archetype * 595archetype *
585type_to_archetype (int type) 596type_to_archetype (int type)
586{ 597{
587 for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) 598 for_all_archetypes (at)
588 if (at->clone.type == type) 599 if (at->type == type && at->head_ () != at)
589 return at; 600 return at;
590 601
591 return 0; 602 return 0;
592} 603}
593 604
605 { 616 {
606 LOG (llevError, "Can't clone archetype %d\n", type); 617 LOG (llevError, "Can't clone archetype %d\n", type);
607 return 0; 618 return 0;
608 } 619 }
609 620
610 object *op = at->clone.clone (); 621 object *op = at->clone ();
611 op->instantiate (); 622 op->instantiate ();
612 return op; 623 return op;
613} 624}
614 625
615/* 626/*
616 * member: make instance from class 627 * member: make instance from class
617 */ 628 */
618
619object * 629object *
620object_create_arch (archetype *at) 630object_create_arch (archetype *at)
621{ 631{
622 object *op, *prev = 0, *head = 0; 632 object *op, *prev = 0, *head = 0;
623 633
624 while (at) 634 while (at)
625 { 635 {
626 op = arch_to_object (at); 636 op = arch_to_object (at);
637
627 op->x = at->clone.x; 638 op->x = at->x;
628 op->y = at->clone.y; 639 op->y = at->y;
629 640
630 if (head) 641 if (head)
631 op->head = head, prev->more = op; 642 op->head = head, prev->more = op;
632 643
633 if (!head) 644 if (!head)
634 head = op; 645 head = op;
635 646
636 prev = op; 647 prev = op;
637 at = at->more; 648 at = (archetype *)at->more;
638 } 649 }
639 650
640 return (head); 651 return head;
641} 652}
642 653

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