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Howard Hinnant7a563db2011-09-14 18:33:51 +00001// -*- C++ -*-
2//===--------------------------- __debug ----------------------------------===//
3//
4// The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10
11#ifndef _LIBCPP_DEBUG_H
12#define _LIBCPP_DEBUG_H
13
Eric Fiselierb9536102014-08-10 23:53:08 +000014#include <__config>
15
Howard Hinnant499cea12013-08-23 17:37:05 +000016#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17#pragma GCC system_header
18#endif
19
Howard Hinnantabe26282011-09-16 17:29:17 +000020#if _LIBCPP_DEBUG_LEVEL >= 1
Howard Hinnant7a563db2011-09-14 18:33:51 +000021# include <cstdlib>
22# include <cstdio>
23# include <cstddef>
Howard Hinnantf5f46842013-03-25 19:29:35 +000024# ifndef _LIBCPP_ASSERT
Ed Schoutene5a356a2015-03-10 07:57:43 +000025# define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (_VSTD::fprintf(stderr, "%s\n", m), _VSTD::abort()))
Howard Hinnantf5f46842013-03-25 19:29:35 +000026# endif
Eric Fiselierb9536102014-08-10 23:53:08 +000027#endif
Howard Hinnant7a563db2011-09-14 18:33:51 +000028
Eric Fiselierf6535882016-07-23 20:36:55 +000029#if _LIBCPP_DEBUG_LEVEL >= 2
30#ifndef _LIBCPP_DEBUG_ASSERT
31#define _LIBCPP_DEBUG_ASSERT(x, m) _LIBCPP_ASSERT(x, m)
32#endif
33#define _LIBCPP_DEBUG_MODE(...) __VA_ARGS__
34#endif
35
Eric Fiselierb9536102014-08-10 23:53:08 +000036#ifndef _LIBCPP_ASSERT
37# define _LIBCPP_ASSERT(x, m) ((void)0)
Howard Hinnantabe26282011-09-16 17:29:17 +000038#endif
Eric Fiselierf6535882016-07-23 20:36:55 +000039#ifndef _LIBCPP_DEBUG_ASSERT
40# define _LIBCPP_DEBUG_ASSERT(x, m) ((void)0)
41#endif
42#ifndef _LIBCPP_DEBUG_MODE
43#define _LIBCPP_DEBUG_MODE(...) ((void)0)
44#endif
Howard Hinnantabe26282011-09-16 17:29:17 +000045
46#if _LIBCPP_DEBUG_LEVEL >= 2
47
Howard Hinnant7a563db2011-09-14 18:33:51 +000048_LIBCPP_BEGIN_NAMESPACE_STD
49
Howard Hinnant83eade62013-03-06 23:30:19 +000050struct _LIBCPP_TYPE_VIS __c_node;
Howard Hinnant7a563db2011-09-14 18:33:51 +000051
Howard Hinnant83eade62013-03-06 23:30:19 +000052struct _LIBCPP_TYPE_VIS __i_node
Howard Hinnant7a563db2011-09-14 18:33:51 +000053{
54 void* __i_;
55 __i_node* __next_;
56 __c_node* __c_;
57
Howard Hinnant499cea12013-08-23 17:37:05 +000058#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
Howard Hinnant7a563db2011-09-14 18:33:51 +000059 __i_node(const __i_node&) = delete;
60 __i_node& operator=(const __i_node&) = delete;
Howard Hinnant499cea12013-08-23 17:37:05 +000061#else
62private:
63 __i_node(const __i_node&);
64 __i_node& operator=(const __i_node&);
65public:
66#endif
Howard Hinnant7a563db2011-09-14 18:33:51 +000067 _LIBCPP_INLINE_VISIBILITY
68 __i_node(void* __i, __i_node* __next, __c_node* __c)
69 : __i_(__i), __next_(__next), __c_(__c) {}
70 ~__i_node();
71};
72
Howard Hinnant83eade62013-03-06 23:30:19 +000073struct _LIBCPP_TYPE_VIS __c_node
Howard Hinnant7a563db2011-09-14 18:33:51 +000074{
75 void* __c_;
76 __c_node* __next_;
77 __i_node** beg_;
78 __i_node** end_;
79 __i_node** cap_;
80
Howard Hinnant499cea12013-08-23 17:37:05 +000081#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
Howard Hinnant7a563db2011-09-14 18:33:51 +000082 __c_node(const __c_node&) = delete;
83 __c_node& operator=(const __c_node&) = delete;
Howard Hinnant499cea12013-08-23 17:37:05 +000084#else
85private:
86 __c_node(const __c_node&);
87 __c_node& operator=(const __c_node&);
88public:
89#endif
Howard Hinnant7a563db2011-09-14 18:33:51 +000090 _LIBCPP_INLINE_VISIBILITY
91 __c_node(void* __c, __c_node* __next)
92 : __c_(__c), __next_(__next), beg_(nullptr), end_(nullptr), cap_(nullptr) {}
93 virtual ~__c_node();
94
95 virtual bool __dereferenceable(const void*) const = 0;
96 virtual bool __decrementable(const void*) const = 0;
97 virtual bool __addable(const void*, ptrdiff_t) const = 0;
98 virtual bool __subscriptable(const void*, ptrdiff_t) const = 0;
99
Howard Hinnant1c3ec6d2011-09-27 23:55:03 +0000100 void __add(__i_node* __i);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000101 _LIBCPP_HIDDEN void __remove(__i_node* __i);
102};
103
104template <class _Cont>
105struct _C_node
106 : public __c_node
107{
108 _C_node(void* __c, __c_node* __n)
109 : __c_node(__c, __n) {}
110
111 virtual bool __dereferenceable(const void*) const;
112 virtual bool __decrementable(const void*) const;
113 virtual bool __addable(const void*, ptrdiff_t) const;
114 virtual bool __subscriptable(const void*, ptrdiff_t) const;
115};
116
117template <class _Cont>
118bool
119_C_node<_Cont>::__dereferenceable(const void* __i) const
120{
121 typedef typename _Cont::const_iterator iterator;
122 const iterator* __j = static_cast<const iterator*>(__i);
Howard Hinnant99968442011-11-29 18:15:50 +0000123 _Cont* _Cp = static_cast<_Cont*>(__c_);
124 return _Cp->__dereferenceable(__j);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000125}
126
127template <class _Cont>
128bool
129_C_node<_Cont>::__decrementable(const void* __i) const
130{
131 typedef typename _Cont::const_iterator iterator;
132 const iterator* __j = static_cast<const iterator*>(__i);
Howard Hinnant99968442011-11-29 18:15:50 +0000133 _Cont* _Cp = static_cast<_Cont*>(__c_);
134 return _Cp->__decrementable(__j);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000135}
136
137template <class _Cont>
138bool
139_C_node<_Cont>::__addable(const void* __i, ptrdiff_t __n) const
140{
141 typedef typename _Cont::const_iterator iterator;
142 const iterator* __j = static_cast<const iterator*>(__i);
Howard Hinnant99968442011-11-29 18:15:50 +0000143 _Cont* _Cp = static_cast<_Cont*>(__c_);
144 return _Cp->__addable(__j, __n);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000145}
146
147template <class _Cont>
148bool
149_C_node<_Cont>::__subscriptable(const void* __i, ptrdiff_t __n) const
150{
151 typedef typename _Cont::const_iterator iterator;
152 const iterator* __j = static_cast<const iterator*>(__i);
Howard Hinnant99968442011-11-29 18:15:50 +0000153 _Cont* _Cp = static_cast<_Cont*>(__c_);
154 return _Cp->__subscriptable(__j, __n);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000155}
156
Howard Hinnant83eade62013-03-06 23:30:19 +0000157class _LIBCPP_TYPE_VIS __libcpp_db
Howard Hinnant7a563db2011-09-14 18:33:51 +0000158{
159 __c_node** __cbeg_;
160 __c_node** __cend_;
161 size_t __csz_;
162 __i_node** __ibeg_;
163 __i_node** __iend_;
164 size_t __isz_;
165
166 __libcpp_db();
167public:
Howard Hinnant499cea12013-08-23 17:37:05 +0000168#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
Howard Hinnant7a563db2011-09-14 18:33:51 +0000169 __libcpp_db(const __libcpp_db&) = delete;
170 __libcpp_db& operator=(const __libcpp_db&) = delete;
Howard Hinnant499cea12013-08-23 17:37:05 +0000171#else
172private:
173 __libcpp_db(const __libcpp_db&);
174 __libcpp_db& operator=(const __libcpp_db&);
175public:
176#endif
Howard Hinnant7a563db2011-09-14 18:33:51 +0000177 ~__libcpp_db();
178
179 class __db_c_iterator;
180 class __db_c_const_iterator;
181 class __db_i_iterator;
182 class __db_i_const_iterator;
183
184 __db_c_const_iterator __c_end() const;
185 __db_i_const_iterator __i_end() const;
186
187 template <class _Cont>
188 _LIBCPP_INLINE_VISIBILITY
189 void __insert_c(_Cont* __c)
190 {
191 __c_node* __n = __insert_c(static_cast<void*>(__c));
192 ::new(__n) _C_node<_Cont>(__n->__c_, __n->__next_);
193 }
194
Howard Hinnant7608b4a2011-09-16 19:52:23 +0000195 void __insert_i(void* __i);
Howard Hinnant7a563db2011-09-14 18:33:51 +0000196 __c_node* __insert_c(void* __c);
197 void __erase_c(void* __c);
198
199 void __insert_ic(void* __i, const void* __c);
200 void __iterator_copy(void* __i, const void* __i0);
201 void __erase_i(void* __i);
202
203 void* __find_c_from_i(void* __i) const;
204 void __invalidate_all(void* __c);
205 __c_node* __find_c_and_lock(void* __c) const;
Howard Hinnant1c3ec6d2011-09-27 23:55:03 +0000206 __c_node* __find_c(void* __c) const;
Howard Hinnant7a563db2011-09-14 18:33:51 +0000207 void unlock() const;
208
209 void swap(void* __c1, void* __c2);
210
211
212 bool __dereferenceable(const void* __i) const;
213 bool __decrementable(const void* __i) const;
214 bool __addable(const void* __i, ptrdiff_t __n) const;
215 bool __subscriptable(const void* __i, ptrdiff_t __n) const;
Howard Hinnant8b00e6c2013-08-02 00:26:35 +0000216 bool __less_than_comparable(const void* __i, const void* __j) const;
Howard Hinnant7a563db2011-09-14 18:33:51 +0000217private:
218 _LIBCPP_HIDDEN
219 __i_node* __insert_iterator(void* __i);
220 _LIBCPP_HIDDEN
221 __i_node* __find_iterator(const void* __i) const;
222
Howard Hinnant83eade62013-03-06 23:30:19 +0000223 friend _LIBCPP_FUNC_VIS __libcpp_db* __get_db();
Howard Hinnant7a563db2011-09-14 18:33:51 +0000224};
225
Howard Hinnant83eade62013-03-06 23:30:19 +0000226_LIBCPP_FUNC_VIS __libcpp_db* __get_db();
227_LIBCPP_FUNC_VIS const __libcpp_db* __get_const_db();
Howard Hinnant7a563db2011-09-14 18:33:51 +0000228
229
230_LIBCPP_END_NAMESPACE_STD
231
Howard Hinnantabe26282011-09-16 17:29:17 +0000232#endif
233
Howard Hinnant7a563db2011-09-14 18:33:51 +0000234#endif // _LIBCPP_DEBUG_H
235