1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
9 // version.
10 
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 // General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26 
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
29 // notice appears in all copies, and that both that copyright notice
30 // and this permission notice appear in supporting documentation. None
31 // of the above authors, nor IBM Haifa Research Laboratories, make any
32 // representation about the suitability of this software for any
33 // purpose. It is provided "as is" without express or implied
34 // warranty.
35 
36 /**
37  * @file gp_hash_table_map_/gp_ht_map_.hpp
38  * Contains an implementation class for general probing hash.
39  */
40 
41 #include <ext/pb_ds/tag_and_trait.hpp>
42 #include <ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp>
43 #include <ext/pb_ds/detail/types_traits.hpp>
44 #include <ext/pb_ds/exception.hpp>
45 #include <ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp>
46 #include <utility>
47 #ifdef PB_DS_HT_MAP_TRACE_
48 #include <iostream>
49 #endif
50 #ifdef _GLIBCXX_DEBUG
51 #include <ext/pb_ds/detail/debug_map_base.hpp>
52 #endif
53 #include <debug/debug.h>
54 
55 namespace __gnu_pbds
56 {
57   namespace detail
58   {
59 #ifdef PB_DS_DATA_TRUE_INDICATOR
60 #define PB_DS_GP_HASH_NAME gp_ht_map
61 #endif
62 
63 #ifdef PB_DS_DATA_FALSE_INDICATOR
64 #define PB_DS_GP_HASH_NAME gp_ht_set
65 #endif
66 
67 #define PB_DS_CLASS_T_DEC \
68    template<typename Key, typename Mapped, typename Hash_Fn, typename Eq_Fn, \
69 	    typename _Alloc, bool Store_Hash, typename Comb_Probe_Fn, \
70 	    typename Probe_Fn,	typename Resize_Policy>
71 
72 #define PB_DS_CLASS_C_DEC \
73    PB_DS_GP_HASH_NAME<Key, Mapped, Hash_Fn, Eq_Fn, _Alloc, \
74 		    Store_Hash, Comb_Probe_Fn, Probe_Fn, Resize_Policy>
75 
76 #define PB_DS_HASH_EQ_FN_C_DEC \
77     hash_eq_fn<Key, Eq_Fn, _Alloc, Store_Hash>
78 
79 #define PB_DS_RANGED_PROBE_FN_C_DEC \
80    ranged_probe_fn<Key, Hash_Fn, _Alloc, Comb_Probe_Fn, Probe_Fn, Store_Hash>
81 
82 #define PB_DS_GP_HASH_TRAITS_BASE \
83    types_traits<Key, Mapped, _Alloc, Store_Hash>
84 
85 #ifdef _GLIBCXX_DEBUG
86 #define PB_DS_DEBUG_MAP_BASE_C_DEC \
87    debug_map_base<Key, Eq_Fn, \
88 		  typename _Alloc::template rebind<Key>::other::const_reference>
89 #endif
90 
91 
92     /**
93      *  A general-probing hash-based container.
94      *
95      *
96      *  @ingroup hash-detail
97      *
98      *  @tparam Key 	    	Key type.
99      *
100      *  @tparam Mapped 	    	Map type.
101      *
102      *  @tparam Hash_Fn	      	Hashing functor.
103      *                          Default is __gnu_cxx::hash.
104      *
105      *  @tparam Eq_Fn	      	Equal functor.
106      *                          Default std::equal_to<Key>
107      *
108      *  @tparam _Alloc 	    	Allocator type.
109      *
110      *  @tparam Store_Hash    	If key type stores extra metadata.
111      *                          Defaults to false.
112      *
113      *  @tparam Comb_Probe_Fn	Combining probe functor.
114      *                          If Hash_Fn is not null_type, then this
115      *                          is the ranged-probe functor; otherwise,
116      *                          this is the range-hashing functor.
117      *                    XXX See Design::Hash-Based Containers::Hash Policies.
118      *                          Default direct_mask_range_hashing.
119      *
120      *  @tparam Probe_Fn       	Probe functor.
121      *                          Defaults to linear_probe_fn,
122      *                          also quadratic_probe_fn.
123      *
124      *  @tparam Resize_Policy 	Resizes hash.
125      *                          Defaults to hash_standard_resize_policy,
126      *                          using hash_exponential_size_policy and
127      *                          hash_load_check_resize_trigger.
128      *
129      *
130      *  Bases are: detail::hash_eq_fn, Resize_Policy, detail::ranged_probe_fn,
131      *             detail::types_traits. (Optional: detail::debug_map_base.)
132      */
133     template<typename Key,
134 	     typename Mapped,
135 	     typename Hash_Fn,
136 	     typename Eq_Fn,
137 	     typename _Alloc,
138 	     bool Store_Hash,
139 	     typename Comb_Probe_Fn,
140 	     typename Probe_Fn,
141 	     typename Resize_Policy>
142     class PB_DS_GP_HASH_NAME :
143 #ifdef _GLIBCXX_DEBUG
144       protected PB_DS_DEBUG_MAP_BASE_C_DEC,
145 #endif
146       public PB_DS_HASH_EQ_FN_C_DEC,
147       public Resize_Policy,
148       public PB_DS_RANGED_PROBE_FN_C_DEC,
149       public PB_DS_GP_HASH_TRAITS_BASE
150     {
151     private:
152       typedef PB_DS_GP_HASH_TRAITS_BASE	       	traits_base;
153       typedef typename traits_base::value_type 	value_type_;
154       typedef typename traits_base::pointer 	pointer_;
155       typedef typename traits_base::const_pointer const_pointer_;
156       typedef typename traits_base::reference 	reference_;
157       typedef typename traits_base::const_reference const_reference_;
158       typedef typename traits_base::comp_hash	comp_hash;
159 
160       enum entry_status
161 	{
162 	  empty_entry_status,
163 	  valid_entry_status,
164 	  erased_entry_status
165 	} __attribute__ ((__packed__));
166 
167       struct entry : public traits_base::stored_data_type
168       {
169 	entry_status m_stat;
170       };
171 
172       typedef typename _Alloc::template rebind<entry>::other entry_allocator;
173       typedef typename entry_allocator::pointer entry_pointer;
174       typedef typename entry_allocator::const_pointer const_entry_pointer;
175       typedef typename entry_allocator::reference entry_reference;
176       typedef typename entry_allocator::const_reference const_entry_reference;
177       typedef typename entry_allocator::pointer entry_array;
178 
179       typedef PB_DS_RANGED_PROBE_FN_C_DEC 	ranged_probe_fn_base;
180 
181 #ifdef _GLIBCXX_DEBUG
182       typedef PB_DS_DEBUG_MAP_BASE_C_DEC 	debug_base;
183 #endif
184 
185       typedef PB_DS_HASH_EQ_FN_C_DEC 		hash_eq_fn_base;
186       typedef Resize_Policy 			resize_base;
187 
188 #define PB_DS_GEN_POS typename _Alloc::size_type
189 
190 #include <ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp>
191 #include <ext/pb_ds/detail/unordered_iterator/point_iterator.hpp>
192 #include <ext/pb_ds/detail/unordered_iterator/const_iterator.hpp>
193 #include <ext/pb_ds/detail/unordered_iterator/iterator.hpp>
194 
195 #undef PB_DS_GEN_POS
196 
197     public:
198       typedef _Alloc 				allocator_type;
199       typedef typename _Alloc::size_type 	size_type;
200       typedef typename _Alloc::difference_type 	difference_type;
201       typedef Hash_Fn 				hash_fn;
202       typedef Eq_Fn 				eq_fn;
203       typedef Probe_Fn 				probe_fn;
204       typedef Comb_Probe_Fn 			comb_probe_fn;
205       typedef Resize_Policy 			resize_policy;
206 
207       /// Value stores hash, true or false.
208       enum
209 	{
210 	  store_hash = Store_Hash
211 	};
212 
213       typedef typename traits_base::key_type 	key_type;
214       typedef typename traits_base::key_pointer key_pointer;
215       typedef typename traits_base::key_const_pointer key_const_pointer;
216       typedef typename traits_base::key_reference key_reference;
217       typedef typename traits_base::key_const_reference key_const_reference;
218       typedef typename traits_base::mapped_type mapped_type;
219       typedef typename traits_base::mapped_pointer mapped_pointer;
220       typedef typename traits_base::mapped_const_pointer mapped_const_pointer;
221       typedef typename traits_base::mapped_reference mapped_reference;
222       typedef typename traits_base::mapped_const_reference mapped_const_reference;
223       typedef typename traits_base::value_type value_type;
224       typedef typename traits_base::pointer pointer;
225       typedef typename traits_base::const_pointer const_pointer;
226       typedef typename traits_base::reference reference;
227       typedef typename traits_base::const_reference const_reference;
228 
229 #ifdef PB_DS_DATA_TRUE_INDICATOR
230       typedef point_iterator_ 			point_iterator;
231 #endif
232 
233 #ifdef PB_DS_DATA_FALSE_INDICATOR
234       typedef point_const_iterator_ 		point_iterator;
235 #endif
236 
237       typedef point_const_iterator_ 		point_const_iterator;
238 
239 #ifdef PB_DS_DATA_TRUE_INDICATOR
240       typedef iterator_ 			iterator;
241 #endif
242 
243 #ifdef PB_DS_DATA_FALSE_INDICATOR
244       typedef const_iterator_ 			iterator;
245 #endif
246 
247       typedef const_iterator_ 			const_iterator;
248 
249       PB_DS_GP_HASH_NAME();
250 
251       PB_DS_GP_HASH_NAME(const PB_DS_CLASS_C_DEC&);
252 
253       PB_DS_GP_HASH_NAME(const Hash_Fn&);
254 
255       PB_DS_GP_HASH_NAME(const Hash_Fn&, const Eq_Fn&);
256 
257       PB_DS_GP_HASH_NAME(const Hash_Fn&, const Eq_Fn&, const Comb_Probe_Fn&);
258 
259       PB_DS_GP_HASH_NAME(const Hash_Fn&, const Eq_Fn&, const Comb_Probe_Fn&,
260 			 const Probe_Fn&);
261 
262       PB_DS_GP_HASH_NAME(const Hash_Fn&, const Eq_Fn&, const Comb_Probe_Fn&,
263 			 const Probe_Fn&, const Resize_Policy&);
264 
265       template<typename It>
266       void
267       copy_from_range(It, It);
268 
269       virtual
270       ~PB_DS_GP_HASH_NAME();
271 
272       void
273       swap(PB_DS_CLASS_C_DEC&);
274 
275       inline size_type
276       size() const;
277 
278       inline size_type
279       max_size() const;
280 
281       /// True if size() == 0.
282       inline bool
283       empty() const;
284 
285       /// Return current hash_fn.
286       Hash_Fn&
287       get_hash_fn();
288 
289       /// Return current const hash_fn.
290       const Hash_Fn&
291       get_hash_fn() const;
292 
293       /// Return current eq_fn.
294       Eq_Fn&
295       get_eq_fn();
296 
297       /// Return current const eq_fn.
298       const Eq_Fn&
299       get_eq_fn() const;
300 
301       /// Return current probe_fn.
302       Probe_Fn&
303       get_probe_fn();
304 
305       /// Return current const probe_fn.
306       const Probe_Fn&
307       get_probe_fn() const;
308 
309       /// Return current comb_probe_fn.
310       Comb_Probe_Fn&
311       get_comb_probe_fn();
312 
313       /// Return current const comb_probe_fn.
314       const Comb_Probe_Fn&
315       get_comb_probe_fn() const;
316 
317       /// Return current resize_policy.
318       Resize_Policy&
319       get_resize_policy();
320 
321       /// Return current const resize_policy.
322       const Resize_Policy&
323       get_resize_policy() const;
324 
325       inline std::pair<point_iterator, bool>
326       insert(const_reference r_val)
327       {
328        _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid(__FILE__, __LINE__);)
329 	return insert_imp(r_val, traits_base::m_store_extra_indicator);
330       }
331 
332       inline mapped_reference
333       operator[](key_const_reference r_key)
334       {
335 #ifdef PB_DS_DATA_TRUE_INDICATOR
336 	return subscript_imp(r_key, traits_base::m_store_extra_indicator);
337 #else
338 	insert(r_key);
339 	return traits_base::s_null_type;
340 #endif
341       }
342 
343       inline point_iterator
344       find(key_const_reference);
345 
346       inline point_const_iterator
347       find(key_const_reference) const;
348 
349       inline point_iterator
350       find_end();
351 
352       inline point_const_iterator
353       find_end() const;
354 
355       inline bool
356       erase(key_const_reference);
357 
358       template<typename Pred>
359         inline size_type
360         erase_if(Pred);
361 
362       void
363       clear();
364 
365       inline iterator
366       begin();
367 
368       inline const_iterator
369       begin() const;
370 
371       inline iterator
372       end();
373 
374       inline const_iterator
375       end() const;
376 
377 #ifdef _GLIBCXX_DEBUG
378       void
379       assert_valid(const char*, int) const;
380 #endif
381 
382 #ifdef PB_DS_HT_MAP_TRACE_
383       void
384       trace() const;
385 #endif
386 
387     private:
388 #ifdef PB_DS_DATA_TRUE_INDICATOR
389       friend class iterator_;
390 #endif
391 
392       friend class const_iterator_;
393 
394       void
395       deallocate_all();
396 
397       void
398       initialize();
399 
400       void
401       erase_all_valid_entries(entry_array, size_type);
402 
403       inline bool
404       do_resize_if_needed();
405 
406       inline void
407       do_resize_if_needed_no_throw();
408 
409       void
410       resize_imp(size_type);
411 
412       virtual void
413       do_resize(size_type);
414 
415       void
416       resize_imp(entry_array, size_type);
417 
418       inline void
419       resize_imp_reassign(entry_pointer, entry_array, false_type);
420 
421       inline void
422       resize_imp_reassign(entry_pointer, entry_array, true_type);
423 
424       inline size_type
425       find_ins_pos(key_const_reference, false_type);
426 
427       inline comp_hash
428       find_ins_pos(key_const_reference, true_type);
429 
430       inline std::pair<point_iterator, bool>
431       insert_imp(const_reference, false_type);
432 
433       inline std::pair<point_iterator, bool>
434       insert_imp(const_reference, true_type);
435 
436       inline pointer
437       insert_new_imp(const_reference r_val, size_type pos)
438       {
439 	_GLIBCXX_DEBUG_ASSERT(m_entries[pos].m_stat != valid_entry_status);
440 
441 	if (do_resize_if_needed())
442 	  pos = find_ins_pos(PB_DS_V2F(r_val),
443 			     traits_base::m_store_extra_indicator);
444 
445 	_GLIBCXX_DEBUG_ASSERT(m_entries[pos].m_stat != valid_entry_status);
446 	entry* const p_e = m_entries + pos;
447 	new (&p_e->m_value) value_type(r_val);
448 	p_e->m_stat = valid_entry_status;
449 	resize_base::notify_inserted(++m_num_used_e);
450 
451 	_GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(p_e->m_value));)
452 	_GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);)
453 	return &p_e->m_value;
454       }
455 
456       inline pointer
457       insert_new_imp(const_reference r_val, comp_hash& r_pos_hash_pair)
458       {
459 	_GLIBCXX_DEBUG_ASSERT(m_entries[r_pos_hash_pair.first].m_stat !=
460 			      valid_entry_status);
461 
462 	if (do_resize_if_needed())
463 	  r_pos_hash_pair = find_ins_pos(PB_DS_V2F(r_val),
464 					 traits_base::m_store_extra_indicator);
465 
466 	_GLIBCXX_DEBUG_ASSERT(m_entries[r_pos_hash_pair.first].m_stat !=
467 			      valid_entry_status);
468 
469 	entry* const p_e = m_entries + r_pos_hash_pair.first;
470 	new (&p_e->m_value) value_type(r_val);
471 	p_e->m_hash = r_pos_hash_pair.second;
472 	p_e->m_stat = valid_entry_status;
473 
474 	resize_base::notify_inserted(++m_num_used_e);
475 
476 	_GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(p_e->m_value));)
477 	_GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);)
478 	return &p_e->m_value;
479       }
480 
481 #ifdef PB_DS_DATA_TRUE_INDICATOR
482       inline mapped_reference
483       subscript_imp(key_const_reference key, false_type)
484       {
485 	_GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);)
486 
487 	const size_type pos = find_ins_pos(key,
488 					 traits_base::m_store_extra_indicator);
489 
490 	entry_pointer p_e = &m_entries[pos];
491 	if (p_e->m_stat != valid_entry_status)
492 	  return insert_new_imp(value_type(key, mapped_type()), pos)->second;
493 
494 	PB_DS_CHECK_KEY_EXISTS(key)
495 	return p_e->m_value.second;
496       }
497 
498       inline mapped_reference
499       subscript_imp(key_const_reference key, true_type)
500       {
501 	_GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);)
502 
503 	comp_hash pos_hash_pair = find_ins_pos(key,
504 					 traits_base::m_store_extra_indicator);
505 
506 	if (m_entries[pos_hash_pair.first].m_stat != valid_entry_status)
507 	  return insert_new_imp(value_type(key, mapped_type()),
508 				 pos_hash_pair)->second;
509 
510 	PB_DS_CHECK_KEY_EXISTS(key)
511 	return (m_entries + pos_hash_pair.first)->m_value.second;
512       }
513 #endif
514 
515       inline pointer
516       find_key_pointer(key_const_reference key, false_type)
517       {
518 	const size_type hash = ranged_probe_fn_base::operator()(key);
519 	resize_base::notify_find_search_start();
520 
521 	// Loop until entry is found or until all possible entries accessed.
522 	for (size_type i = 0; i < m_num_e; ++i)
523 	  {
524 	    const size_type pos = ranged_probe_fn_base::operator()(key,
525 								   hash, i);
526 
527 	    entry* const p_e = m_entries + pos;
528 	    switch (p_e->m_stat)
529 	      {
530 	      case empty_entry_status:
531 		{
532 		  resize_base::notify_find_search_end();
533 		  PB_DS_CHECK_KEY_DOES_NOT_EXIST(key)
534 		  return 0;
535 		}
536 		break;
537 	      case valid_entry_status:
538 		if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), key))
539 		  {
540 		    resize_base::notify_find_search_end();
541 		    PB_DS_CHECK_KEY_EXISTS(key)
542 		    return pointer(&p_e->m_value);
543 		  }
544 		break;
545 	      case erased_entry_status:
546 		break;
547 	      default:
548 		_GLIBCXX_DEBUG_ASSERT(0);
549 	      };
550 
551 	    resize_base::notify_find_search_collision();
552 	  }
553 
554 	PB_DS_CHECK_KEY_DOES_NOT_EXIST(key)
555 	resize_base::notify_find_search_end();
556 	return 0;
557       }
558 
559       inline pointer
560       find_key_pointer(key_const_reference key, true_type)
561       {
562 	comp_hash pos_hash_pair = ranged_probe_fn_base::operator()(key);
563 	resize_base::notify_find_search_start();
564 
565 	// Loop until entry is found or until all possible entries accessed.
566 	for (size_type i = 0; i < m_num_e; ++i)
567 	  {
568 	    const size_type pos =
569 	      ranged_probe_fn_base::operator()(key, pos_hash_pair.second, i);
570 
571 	    entry* const p_e = m_entries + pos;
572 
573 	    switch(p_e->m_stat)
574 	      {
575 	      case empty_entry_status:
576 		{
577 		  resize_base::notify_find_search_end();
578 		  PB_DS_CHECK_KEY_DOES_NOT_EXIST(key)
579 		  return 0;
580 		}
581 		break;
582 	      case valid_entry_status:
583 		if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value),
584 						p_e->m_hash,
585 						key, pos_hash_pair.second))
586 		  {
587 		    resize_base::notify_find_search_end();
588 		    PB_DS_CHECK_KEY_EXISTS(key)
589 		    return pointer(&p_e->m_value);
590 		  }
591 		break;
592 	      case erased_entry_status:
593 		break;
594 	      default:
595 		_GLIBCXX_DEBUG_ASSERT(0);
596 	      };
597 
598 	    resize_base::notify_find_search_collision();
599 	  }
600 
601 	PB_DS_CHECK_KEY_DOES_NOT_EXIST(key)
602 	resize_base::notify_find_search_end();
603 	return 0;
604       }
605 
606       inline bool
607       erase_imp(key_const_reference, true_type);
608 
609       inline bool
610       erase_imp(key_const_reference, false_type);
611 
612       inline void
613       erase_entry(entry_pointer);
614 
615 #ifdef PB_DS_DATA_TRUE_INDICATOR
616       void
617       inc_it_state(pointer& r_p_value, size_type& r_pos) const
618       { inc_it_state((mapped_const_pointer& )r_p_value, r_pos); }
619 #endif
620 
621       void
622       inc_it_state(const_pointer& r_p_value, size_type& r_pos) const
623       {
624 	_GLIBCXX_DEBUG_ASSERT(r_p_value != 0);
625 	for (++r_pos; r_pos < m_num_e; ++r_pos)
626 	  {
627 	    const_entry_pointer p_e =& m_entries[r_pos];
628 	    if (p_e->m_stat == valid_entry_status)
629 	      {
630 		r_p_value =& p_e->m_value;
631 		return;
632 	      }
633 	  }
634 	r_p_value = 0;
635       }
636 
637       void
638       get_start_it_state(const_pointer& r_p_value, size_type& r_pos) const
639       {
640 	for (r_pos = 0; r_pos < m_num_e; ++r_pos)
641 	  {
642 	    const_entry_pointer p_e = &m_entries[r_pos];
643 	    if (p_e->m_stat == valid_entry_status)
644 	      {
645 		r_p_value = &p_e->m_value;
646 		return;
647 	      }
648 	  }
649 	r_p_value = 0;
650       }
651 
652       void
653       get_start_it_state(pointer& r_p_value, size_type& r_pos)
654       {
655 	for (r_pos = 0; r_pos < m_num_e; ++r_pos)
656 	  {
657 	    entry_pointer p_e = &m_entries[r_pos];
658 	    if (p_e->m_stat == valid_entry_status)
659 	      {
660 		r_p_value = &p_e->m_value;
661 		return;
662 	      }
663 	  }
664 	r_p_value = 0;
665       }
666 
667 #ifdef _GLIBCXX_DEBUG
668       void
669       assert_entry_array_valid(const entry_array, false_type,
670 			       const char*, int) const;
671 
672       void
673       assert_entry_array_valid(const entry_array, true_type,
674 			       const char*, int) const;
675 #endif
676 
677       static entry_allocator 	s_entry_allocator;
678       static iterator 		s_end_it;
679       static const_iterator 	s_const_end_it;
680 
681       size_type 		m_num_e;
682       size_type 		m_num_used_e;
683       entry_pointer 		m_entries;
684 
685       enum
686 	{
687 	  store_hash_ok = !Store_Hash
688 			  || !is_same<Hash_Fn, __gnu_pbds::null_type>::value
689 	};
690 
691       PB_DS_STATIC_ASSERT(sth, store_hash_ok);
692     };
693 
694 #include <ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp>
695 #include <ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp>
696 #include <ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp>
697 #include <ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp>
698 #include <ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp>
699 #include <ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp>
700 #include <ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp>
701 #include <ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp>
702 #include <ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp>
703 #include <ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp>
704 
705 #undef PB_DS_CLASS_T_DEC
706 #undef PB_DS_CLASS_C_DEC
707 #undef PB_DS_HASH_EQ_FN_C_DEC
708 #undef PB_DS_RANGED_PROBE_FN_C_DEC
709 #undef PB_DS_GP_HASH_TRAITS_BASE
710 #undef PB_DS_DEBUG_MAP_BASE_C_DEC
711 #undef PB_DS_GP_HASH_NAME
712   } // namespace detail
713 } // namespace __gnu_pbds
714