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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/include/profile/iterator_tracker.h | |
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Diffstat (limited to 'libstdc++-v3/include/profile/iterator_tracker.h')
-rw-r--r-- | libstdc++-v3/include/profile/iterator_tracker.h | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/libstdc++-v3/include/profile/iterator_tracker.h b/libstdc++-v3/include/profile/iterator_tracker.h new file mode 100644 index 000000000..91f733cf7 --- /dev/null +++ b/libstdc++-v3/include/profile/iterator_tracker.h @@ -0,0 +1,274 @@ +// Profiling iterator implementation -*- C++ -*- + +// Copyright (C) 2009, 2010 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 +// <http://www.gnu.org/licenses/>. + +/** @file profile/iterator_tracker.h + * This file is a GNU profile extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_PROFILE_ITERATOR_TRACKER +#define _GLIBCXX_PROFILE_ITERATOR_TRACKER 1 + +#include <ext/type_traits.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +namespace __profile +{ + + template<typename _Iterator, typename _Sequence> + class __iterator_tracker + { + typedef __iterator_tracker _Self; + + // The underlying iterator + _Iterator _M_current; + + // The underlying data structure + const _Sequence* _M_ds; + typedef std::iterator_traits<_Iterator> _Traits; + + public: + typedef _Iterator _Base_iterator; + typedef typename _Traits::iterator_category iterator_category; + typedef typename _Traits::value_type value_type; + typedef typename _Traits::difference_type difference_type; + typedef typename _Traits::reference reference; + typedef typename _Traits::pointer pointer; + + __iterator_tracker() + : _M_current(), _M_ds(0) { } + + __iterator_tracker(const _Iterator& __i, const _Sequence* __seq) + : _M_current(__i), _M_ds(__seq) { } + + __iterator_tracker(const __iterator_tracker& __x) + : _M_current(__x._M_current), _M_ds(__x._M_ds) { } + + template<typename _MutableIterator> + __iterator_tracker(const __iterator_tracker<_MutableIterator, + typename __gnu_cxx::__enable_if + <(std::__are_same<_MutableIterator, typename + _Sequence::iterator::_Base_iterator>::__value), + _Sequence>::__type>& __x) + : _M_current(__x.base()), _M_ds(__x._M_get_sequence()) { } + + _Iterator + base() const { return _M_current; } + + /** + * @brief Conversion to underlying non-debug iterator to allow + * better interaction with non-profile containers. + */ + operator _Iterator() const { return _M_current; } + + pointer + operator->() const { return &*_M_current; } + + __iterator_tracker& + operator++() + { + _M_ds->_M_profile_iterate(); + ++_M_current; + return *this; + } + + __iterator_tracker + operator++(int) + { + _M_ds->_M_profile_iterate(); + __iterator_tracker __tmp(*this); + ++_M_current; + return __tmp; + } + + __iterator_tracker& + operator--() + { + _M_ds->_M_profile_iterate(1); + --_M_current; + return *this; + } + + __iterator_tracker + operator--(int) + { + _M_ds->_M_profile_iterate(1); + __iterator_tracker __tmp(*this); + --_M_current; + return __tmp; + } + + __iterator_tracker& + operator=(const __iterator_tracker& __x) + { + _M_current = __x._M_current; + return *this; + } + + reference + operator*() const + { return *_M_current; } + + // ------ Random access iterator requirements ------ + reference + operator[](const difference_type& __n) const + { return _M_current[__n]; } + + __iterator_tracker& + operator+=(const difference_type& __n) + { + _M_current += __n; + return *this; + } + + __iterator_tracker + operator+(const difference_type& __n) const + { + __iterator_tracker __tmp(*this); + __tmp += __n; + return __tmp; + } + + __iterator_tracker& + operator-=(const difference_type& __n) + { + _M_current += -__n; + return *this; + } + + __iterator_tracker + operator-(const difference_type& __n) const + { + __iterator_tracker __tmp(*this); + __tmp -= __n; + return __tmp; + } + + void + _M_find() + { _M_ds->_M_profile_find(); } + + const _Sequence* + _M_get_sequence() const + { return static_cast<const _Sequence*>(_M_ds); } + }; + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator==(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() == __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator==(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() == __rhs.base(); } + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator!=(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() != __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator!=(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() != __rhs.base(); } + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator<(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() < __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator<(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() < __rhs.base(); } + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator<=(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() <= __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator<=(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() <= __rhs.base(); } + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator>(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() > __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator>(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() > __rhs.base(); } + + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline bool + operator>=(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() >= __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline bool + operator>=(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() >= __rhs.base(); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // According to the resolution of DR179 not only the various comparison + // operators but also operator- must accept mixed iterator/const_iterator + // parameters. + template<typename _IteratorL, typename _IteratorR, typename _Sequence> + inline typename __iterator_tracker<_IteratorL, _Sequence>::difference_type + operator-(const __iterator_tracker<_IteratorL, _Sequence>& __lhs, + const __iterator_tracker<_IteratorR, _Sequence>& __rhs) + { return __lhs.base() - __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline typename __iterator_tracker<_Iterator, _Sequence>::difference_type + operator-(const __iterator_tracker<_Iterator, _Sequence>& __lhs, + const __iterator_tracker<_Iterator, _Sequence>& __rhs) + { return __lhs.base() - __rhs.base(); } + + template<typename _Iterator, typename _Sequence> + inline __iterator_tracker<_Iterator, _Sequence> + operator+(typename __iterator_tracker<_Iterator,_Sequence>::difference_type + __n, + const __iterator_tracker<_Iterator, _Sequence>& __i) + { return __i + __n; } + +} // namespace __profile +} // namespace std +#endif |