From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libstdc++-v3/include/debug/safe_sequence.h | 135 +++++++++++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 libstdc++-v3/include/debug/safe_sequence.h (limited to 'libstdc++-v3/include/debug/safe_sequence.h') diff --git a/libstdc++-v3/include/debug/safe_sequence.h b/libstdc++-v3/include/debug/safe_sequence.h new file mode 100644 index 000000000..cc1f4c10d --- /dev/null +++ b/libstdc++-v3/include/debug/safe_sequence.h @@ -0,0 +1,135 @@ +// Safe sequence implementation -*- C++ -*- + +// Copyright (C) 2003, 2004, 2005, 2006, 2009, 2010, 2011 +// Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/safe_sequence.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_SAFE_SEQUENCE_H +#define _GLIBCXX_DEBUG_SAFE_SEQUENCE_H 1 + +#include +#include +#include +#include + +namespace __gnu_debug +{ + template + class _Safe_iterator; + + /** A simple function object that returns true if the passed-in + * value is not equal to the stored value. It saves typing over + * using both bind1st and not_equal. + */ + template + class _Not_equal_to + { + _Type __value; + + public: + explicit _Not_equal_to(const _Type& __v) : __value(__v) { } + + bool + operator()(const _Type& __x) const + { return __value != __x; } + }; + + /** A simple function object that returns true if the passed-in + * value is equal to the stored value. */ + template + class _Equal_to + { + _Type __value; + + public: + explicit _Equal_to(const _Type& __v) : __value(__v) { } + + bool + operator()(const _Type& __x) const + { return __value == __x; } + }; + + /** A function object that returns true when the given random access + iterator is at least @c n steps away from the given iterator. */ + template + class _After_nth_from + { + typedef typename std::iterator_traits<_Iterator>::difference_type + difference_type; + + _Iterator _M_base; + difference_type _M_n; + + public: + _After_nth_from(const difference_type& __n, const _Iterator& __base) + : _M_base(__base), _M_n(__n) { } + + bool + operator()(const _Iterator& __x) const + { return __x - _M_base >= _M_n; } + }; + + /** + * @brief Base class for constructing a @a safe sequence type that + * tracks iterators that reference it. + * + * The class template %_Safe_sequence simplifies the construction of + * @a safe sequences that track the iterators that reference the + * sequence, so that the iterators are notified of changes in the + * sequence that may affect their operation, e.g., if the container + * invalidates its iterators or is destructed. This class template + * may only be used by deriving from it and passing the name of the + * derived class as its template parameter via the curiously + * recurring template pattern. The derived class must have @c + * iterator and @const_iterator types that are instantiations of + * class template _Safe_iterator for this sequence. Iterators will + * then be tracked automatically. + */ + template + class _Safe_sequence : public _Safe_sequence_base + { + public: + /** Invalidates all iterators @c x that reference this sequence, + are not singular, and for which @c pred(x) returns @c + true. @c pred will be invoked with the normal iterators nested + in the safe ones. */ + template + void + _M_invalidate_if(_Predicate __pred); + + /** Transfers all iterators @c x that reference @c from sequence, + are not singular, and for which @c pred(x) returns @c + true. @c pred will be invoked with the normal iterators nested + in the safe ones. */ + template + void + _M_transfer_from_if(_Safe_sequence& __from, _Predicate __pred); + }; +} // namespace __gnu_debug + +#include + +#endif -- cgit v1.2.3