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      1 // Safe container implementation  -*- C++ -*-
      2 
      3 // Copyright (C) 2011-2013 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
      7 // terms of the GNU General Public License as published by the
      8 // Free Software Foundation; either version 3, or (at your option)
      9 // any later version.
     10 
     11 // This library is distributed in the hope that it will be useful,
     12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 // GNU 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 /** @file debug/safe_unordered_container.h
     26  *  This file is a GNU debug extension to the Standard C++ Library.
     27  */
     28 
     29 #ifndef _GLIBCXX_DEBUG_SAFE_UNORDERED_CONTAINER_H
     30 #define _GLIBCXX_DEBUG_SAFE_UNORDERED_CONTAINER_H 1
     31 
     32 #include <debug/debug.h>
     33 #include <debug/macros.h>
     34 #include <debug/functions.h>
     35 #include <debug/safe_unordered_base.h>
     36 
     37 namespace __gnu_debug
     38 {
     39   /**
     40    * @brief Base class for constructing a @a safe unordered container type
     41    * that tracks iterators that reference it.
     42    *
     43    * The class template %_Safe_unordered_container simplifies the
     44    * construction of @a safe unordered containers that track the iterators
     45    * that reference the container, so that the iterators are notified of
     46    * changes in the container that may affect their operation, e.g., if
     47    * the container invalidates its iterators or is destructed. This class
     48    * template may only be used by deriving from it and passing the name
     49    * of the derived class as its template parameter via the curiously
     50    * recurring template pattern. The derived class must have @c
     51    * iterator and @c const_iterator types that are instantiations of
     52    * class template _Safe_iterator for this container and @c local_iterator
     53    * and @c const_local_iterator types that are instantiations of class
     54    * template _Safe_local_iterator for this container. Iterators will
     55    * then be tracked automatically.
     56    */
     57   template<typename _Container>
     58     class _Safe_unordered_container : public _Safe_unordered_container_base
     59     {
     60     public:
     61       /** Invalidates all iterators @c x that reference this container,
     62 	  are not singular, and for which @c __pred(x) returns @c
     63 	  true. @c __pred will be invoked with the normal iterators nested
     64 	  in the safe ones. */
     65       template<typename _Predicate>
     66 	void
     67 	_M_invalidate_if(_Predicate __pred);
     68 
     69       /** Invalidates all local iterators @c x that reference this container,
     70 	  are not singular, and for which @c __pred(x) returns @c
     71 	  true. @c __pred will be invoked with the normal ilocal iterators
     72 	  nested in the safe ones. */
     73       template<typename _Predicate>
     74 	void
     75 	_M_invalidate_local_if(_Predicate __pred);
     76     };
     77 } // namespace __gnu_debug
     78 
     79 #include <debug/safe_unordered_container.tcc>
     80 
     81 #endif
     82