1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006, 2007, 2008, 2009 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 debug_map_base.hpp 38 * Contains a debug-mode base for all maps. 39 */ 40 41 #ifndef PB_DS_DEBUG_MAP_BASE_HPP 42 #define PB_DS_DEBUG_MAP_BASE_HPP 43 44 #ifdef _GLIBCXX_DEBUG 45 46 #include <list> 47 #include <utility> 48 #include <cstdlib> 49 #include <iostream> 50 #include <ext/throw_allocator.h> 51 #include <debug/debug.h> 52 53 namespace __gnu_pbds 54 { 55 namespace detail 56 { 57 // Need std::pair ostream extractor. 58 template<typename _CharT, typename _Traits, typename _Tp1, typename _Tp2> 59 inline std::basic_ostream<_CharT, _Traits>& 60 operator<<(std::basic_ostream<_CharT, _Traits>& __out, 61 const std::pair<_Tp1, _Tp2>& p) 62 { return (__out << '(' << p.first << ',' << p.second << ')'); } 63 64 #define PB_DS_CLASS_T_DEC \ 65 template<typename Key, class Eq_Fn, typename Const_Key_Reference> 66 67 #define PB_DS_CLASS_C_DEC \ 68 debug_map_base<Key, Eq_Fn, Const_Key_Reference> 69 70 template<typename Key, class Eq_Fn, typename Const_Key_Reference> 71 class debug_map_base 72 { 73 private: 74 typedef typename std::allocator< Key> key_allocator; 75 76 typedef typename key_allocator::size_type size_type; 77 78 typedef Const_Key_Reference const_key_reference; 79 80 protected: 81 debug_map_base(); 82 83 debug_map_base(const PB_DS_CLASS_C_DEC& other); 84 85 ~debug_map_base(); 86 87 inline void 88 insert_new(const_key_reference r_key); 89 90 inline void 91 erase_existing(const_key_reference r_key); 92 93 void 94 clear(); 95 96 inline void 97 check_key_exists(const_key_reference r_key) const; 98 99 inline void 100 check_key_does_not_exist(const_key_reference r_key) const; 101 102 inline void 103 check_size(size_type size) const; 104 105 void 106 swap(PB_DS_CLASS_C_DEC& other); 107 108 template<typename Cmp_Fn> 109 void 110 split(const_key_reference, Cmp_Fn, PB_DS_CLASS_C_DEC&); 111 112 void 113 join(PB_DS_CLASS_C_DEC& other); 114 115 private: 116 typedef std::list< Key> key_set; 117 typedef typename key_set::iterator key_set_iterator; 118 typedef typename key_set::const_iterator const_key_set_iterator; 119 120 #ifdef _GLIBCXX_DEBUG 121 void 122 assert_valid() const; 123 #endif 124 125 const_key_set_iterator 126 find(const_key_reference r_key) const; 127 128 key_set_iterator 129 find(const_key_reference r_key); 130 131 key_set m_key_set; 132 Eq_Fn m_eq; 133 }; 134 135 PB_DS_CLASS_T_DEC 136 PB_DS_CLASS_C_DEC:: 137 debug_map_base() 138 { _GLIBCXX_DEBUG_ONLY(assert_valid();) } 139 140 PB_DS_CLASS_T_DEC 141 PB_DS_CLASS_C_DEC:: 142 debug_map_base(const PB_DS_CLASS_C_DEC& other) : m_key_set(other.m_key_set) 143 { _GLIBCXX_DEBUG_ONLY(assert_valid();) } 144 145 PB_DS_CLASS_T_DEC 146 PB_DS_CLASS_C_DEC:: 147 ~debug_map_base() 148 { _GLIBCXX_DEBUG_ONLY(assert_valid();) } 149 150 PB_DS_CLASS_T_DEC 151 inline void 152 PB_DS_CLASS_C_DEC:: 153 insert_new(const_key_reference r_key) 154 { 155 _GLIBCXX_DEBUG_ONLY(assert_valid();) 156 __gnu_cxx::throw_allocator<char> alloc; 157 const double orig_throw_prob = alloc.get_throw_prob(); 158 alloc.set_throw_prob(0); 159 if (find(r_key) != m_key_set.end()) 160 { 161 std::cerr << "insert_new" << r_key << std::endl; 162 std::abort(); 163 } 164 165 __try 166 { 167 m_key_set.push_back(r_key); 168 } 169 __catch(...) 170 { 171 std::cerr << "insert_new" << r_key << std::endl; 172 std::abort(); 173 } 174 alloc.set_throw_prob(orig_throw_prob); 175 _GLIBCXX_DEBUG_ONLY(assert_valid();) 176 } 177 178 PB_DS_CLASS_T_DEC 179 inline void 180 PB_DS_CLASS_C_DEC:: 181 erase_existing(const_key_reference r_key) 182 { 183 _GLIBCXX_DEBUG_ONLY(assert_valid();) 184 key_set_iterator it = find(r_key); 185 if (it == m_key_set.end()) 186 { 187 std::cerr << "erase_existing" << r_key << std::endl; 188 std::abort(); 189 } 190 m_key_set.erase(it); 191 _GLIBCXX_DEBUG_ONLY(assert_valid();) 192 } 193 194 PB_DS_CLASS_T_DEC 195 void 196 PB_DS_CLASS_C_DEC:: 197 clear() 198 { 199 _GLIBCXX_DEBUG_ONLY(assert_valid();) 200 m_key_set.clear(); 201 _GLIBCXX_DEBUG_ONLY(assert_valid();) 202 } 203 204 PB_DS_CLASS_T_DEC 205 inline void 206 PB_DS_CLASS_C_DEC:: 207 check_key_exists(const_key_reference r_key) const 208 { 209 _GLIBCXX_DEBUG_ONLY(assert_valid();) 210 if (find(r_key) == m_key_set.end()) 211 { 212 std::cerr << "check_key_exists" << r_key << std::endl; 213 std::abort(); 214 } 215 _GLIBCXX_DEBUG_ONLY(assert_valid();) 216 } 217 218 PB_DS_CLASS_T_DEC 219 inline void 220 PB_DS_CLASS_C_DEC:: 221 check_key_does_not_exist(const_key_reference r_key) const 222 { 223 _GLIBCXX_DEBUG_ONLY(assert_valid();) 224 if (find(r_key) != m_key_set.end()) 225 { 226 using std::cerr; 227 using std::endl; 228 cerr << "check_key_does_not_exist" << r_key << endl; 229 std::abort(); 230 } 231 } 232 233 PB_DS_CLASS_T_DEC 234 inline void 235 PB_DS_CLASS_C_DEC:: 236 check_size(size_type size) const 237 { 238 _GLIBCXX_DEBUG_ONLY(assert_valid();) 239 const size_type key_set_size = m_key_set.size(); 240 if (size != key_set_size) 241 { 242 std::cerr << "check_size " << size 243 << " " << key_set_size << std::endl; 244 std::abort(); 245 } 246 _GLIBCXX_DEBUG_ONLY(assert_valid();) 247 } 248 249 PB_DS_CLASS_T_DEC 250 void 251 PB_DS_CLASS_C_DEC:: 252 swap(PB_DS_CLASS_C_DEC& other) 253 { 254 _GLIBCXX_DEBUG_ONLY(assert_valid();) 255 m_key_set.swap(other.m_key_set); 256 _GLIBCXX_DEBUG_ONLY(assert_valid();) 257 } 258 259 PB_DS_CLASS_T_DEC 260 typename PB_DS_CLASS_C_DEC::const_key_set_iterator 261 PB_DS_CLASS_C_DEC:: 262 find(const_key_reference r_key) const 263 { 264 _GLIBCXX_DEBUG_ONLY(assert_valid();) 265 typedef const_key_set_iterator iterator_type; 266 for (iterator_type it = m_key_set.begin(); it != m_key_set.end(); ++it) 267 if (m_eq(*it, r_key)) 268 return it; 269 return m_key_set.end(); 270 } 271 272 PB_DS_CLASS_T_DEC 273 typename PB_DS_CLASS_C_DEC::key_set_iterator 274 PB_DS_CLASS_C_DEC:: 275 find(const_key_reference r_key) 276 { 277 _GLIBCXX_DEBUG_ONLY(assert_valid();) 278 key_set_iterator it = m_key_set.begin(); 279 while (it != m_key_set.end()) 280 { 281 if (m_eq(*it, r_key)) 282 return it; 283 ++it; 284 } 285 return it; 286 _GLIBCXX_DEBUG_ONLY(assert_valid();) 287 } 288 289 #ifdef _GLIBCXX_DEBUG 290 PB_DS_CLASS_T_DEC 291 void 292 PB_DS_CLASS_C_DEC:: 293 assert_valid() const 294 { 295 const_key_set_iterator prime_it = m_key_set.begin(); 296 while (prime_it != m_key_set.end()) 297 { 298 const_key_set_iterator sec_it = prime_it; 299 ++sec_it; 300 while (sec_it != m_key_set.end()) 301 { 302 _GLIBCXX_DEBUG_ASSERT(!m_eq(*sec_it, *prime_it)); 303 _GLIBCXX_DEBUG_ASSERT(!m_eq(*prime_it, *sec_it)); 304 ++sec_it; 305 } 306 ++prime_it; 307 } 308 } 309 #endif 310 311 PB_DS_CLASS_T_DEC 312 template<typename Cmp_Fn> 313 void 314 PB_DS_CLASS_C_DEC:: 315 split(const_key_reference r_key, Cmp_Fn cmp_fn, PB_DS_CLASS_C_DEC& other) 316 { 317 __gnu_cxx::throw_allocator<char> alloc; 318 const double orig_throw_prob = alloc.get_throw_prob(); 319 alloc.set_throw_prob(0); 320 other.clear(); 321 key_set_iterator it = m_key_set.begin(); 322 while (it != m_key_set.end()) 323 if (cmp_fn(r_key, * it)) 324 { 325 other.insert_new(*it); 326 it = m_key_set.erase(it); 327 } 328 else 329 ++it; 330 alloc.set_throw_prob(orig_throw_prob); 331 } 332 333 PB_DS_CLASS_T_DEC 334 void 335 PB_DS_CLASS_C_DEC:: 336 join(PB_DS_CLASS_C_DEC& other) 337 { 338 __gnu_cxx::throw_allocator<char> alloc; 339 const double orig_throw_prob = alloc.get_throw_prob(); 340 alloc.set_throw_prob(0); 341 key_set_iterator it = other.m_key_set.begin(); 342 while (it != other.m_key_set.end()) 343 { 344 insert_new(*it); 345 it = other.m_key_set.erase(it); 346 } 347 _GLIBCXX_DEBUG_ASSERT(other.m_key_set.empty()); 348 alloc.set_throw_prob(orig_throw_prob); 349 } 350 351 #undef PB_DS_CLASS_T_DEC 352 #undef PB_DS_CLASS_C_DEC 353 354 } // namespace detail 355 } // namespace __gnu_pbds 356 357 #endif 358 359 #endif 360 361
