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  1. // -*- C++ -*-
  2.  
  3. // Copyright (C) 2005-2015 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 trie_policy/trie_string_access_traits_imp.hpp
  38.  * Contains a policy for extracting character positions from
  39.  *    a string for a vector-based PATRICIA tree
  40.  */
  41.  
  42. PB_DS_CLASS_T_DEC
  43. detail::integral_constant<int, Reverse> PB_DS_CLASS_C_DEC::s_rev_ind;
  44.  
  45. PB_DS_CLASS_T_DEC
  46. inline typename PB_DS_CLASS_C_DEC::size_type
  47. PB_DS_CLASS_C_DEC::
  48. e_pos(e_type e)
  49. {
  50.   return (static_cast<size_type>(e - min_e_val));
  51. }
  52.  
  53. PB_DS_CLASS_T_DEC
  54. inline typename PB_DS_CLASS_C_DEC::const_iterator
  55. PB_DS_CLASS_C_DEC::
  56. begin(key_const_reference r_key)
  57. {
  58.   return (begin_imp(r_key, s_rev_ind));
  59. }
  60.  
  61. PB_DS_CLASS_T_DEC
  62. inline typename PB_DS_CLASS_C_DEC::const_iterator
  63. PB_DS_CLASS_C_DEC::
  64. end(key_const_reference r_key)
  65. {
  66.   return (end_imp(r_key, s_rev_ind));
  67. }
  68.  
  69. PB_DS_CLASS_T_DEC
  70. inline typename PB_DS_CLASS_C_DEC::const_iterator
  71. PB_DS_CLASS_C_DEC::
  72. begin_imp(key_const_reference r_key, detail::false_type)
  73. {
  74.   return (r_key.begin());
  75. }
  76.  
  77. PB_DS_CLASS_T_DEC
  78. inline typename PB_DS_CLASS_C_DEC::const_iterator
  79. PB_DS_CLASS_C_DEC::
  80. begin_imp(key_const_reference r_key, detail::true_type)
  81. {
  82.   return (r_key.rbegin());
  83. }
  84.  
  85. PB_DS_CLASS_T_DEC
  86. inline typename PB_DS_CLASS_C_DEC::const_iterator
  87. PB_DS_CLASS_C_DEC::
  88. end_imp(key_const_reference r_key, detail::false_type)
  89. {
  90.   return (r_key.end());
  91. }
  92.  
  93. PB_DS_CLASS_T_DEC
  94. inline typename PB_DS_CLASS_C_DEC::const_iterator
  95. PB_DS_CLASS_C_DEC::
  96. end_imp(key_const_reference r_key, detail::true_type)
  97. {
  98.   return (r_key.rend());
  99. }
  100.