329 lines
8.4 KiB
C++
329 lines
8.4 KiB
C++
// Debugging bitset implementation -*- C++ -*-
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// Copyright (C) 2003, 2004, 2005
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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/** @file debug/bitset
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* This file is a GNU debug extension to the Standard C++ Library.
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*/
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#ifndef _GLIBCXX_DEBUG_BITSET
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#define _GLIBCXX_DEBUG_BITSET
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#include <bitset>
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#include <debug/safe_sequence.h>
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#include <debug/safe_iterator.h>
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namespace std
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{
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namespace __debug
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{
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template<size_t _Nb>
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class bitset
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: public _GLIBCXX_STD::bitset<_Nb>,
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public __gnu_debug::_Safe_sequence_base
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{
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typedef _GLIBCXX_STD::bitset<_Nb> _Base;
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typedef __gnu_debug::_Safe_sequence_base _Safe_base;
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public:
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// bit reference:
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class reference
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: private _Base::reference, public __gnu_debug::_Safe_iterator_base
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{
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typedef typename _Base::reference _Base_ref;
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friend class bitset;
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reference();
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reference(const _Base_ref& __base, bitset* __seq)
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: _Base_ref(__base), _Safe_iterator_base(__seq, false)
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{ }
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public:
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reference(const reference& __x)
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: _Base_ref(__x), _Safe_iterator_base(__x, false)
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{ }
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reference&
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operator=(bool __x)
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{
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_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_write)
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._M_iterator(*this));
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*static_cast<_Base_ref*>(this) = __x;
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return *this;
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}
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reference&
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operator=(const reference& __x)
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{
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_GLIBCXX_DEBUG_VERIFY(! __x._M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_read)
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._M_iterator(__x));
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_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_write)
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._M_iterator(*this));
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*static_cast<_Base_ref*>(this) = __x;
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return *this;
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}
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bool
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operator~() const
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{
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_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_read)
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._M_iterator(*this));
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return ~(*static_cast<const _Base_ref*>(this));
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}
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operator bool() const
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{
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_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_read)
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._M_iterator(*this));
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return *static_cast<const _Base_ref*>(this);
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}
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reference&
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flip()
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{
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_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
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_M_message(__gnu_debug::__msg_bad_bitset_flip)
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._M_iterator(*this));
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_Base_ref::flip();
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return *this;
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}
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};
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// 23.3.5.1 constructors:
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bitset() : _Base() { }
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bitset(unsigned long __val) : _Base(__val) { }
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template<typename _CharT, typename _Traits, typename _Allocator>
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explicit
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bitset(const std::basic_string<_CharT,_Traits,_Allocator>& __str,
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typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
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__pos = 0,
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typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
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__n = (std::basic_string<_CharT,_Traits,_Allocator>::npos))
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: _Base(__str, __pos, __n) { }
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bitset(const _Base& __x) : _Base(__x), _Safe_base() { }
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// 23.3.5.2 bitset operations:
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bitset<_Nb>&
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operator&=(const bitset<_Nb>& __rhs)
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{
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_M_base() &= __rhs;
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return *this;
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}
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bitset<_Nb>&
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operator|=(const bitset<_Nb>& __rhs)
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{
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_M_base() |= __rhs;
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return *this;
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}
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bitset<_Nb>&
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operator^=(const bitset<_Nb>& __rhs)
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{
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_M_base() ^= __rhs;
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return *this;
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}
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bitset<_Nb>&
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operator<<=(size_t __pos)
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{
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_M_base() <<= __pos;
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return *this;
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}
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bitset<_Nb>&
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operator>>=(size_t __pos)
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{
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_M_base() >>= __pos;
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return *this;
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}
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bitset<_Nb>&
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set()
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{
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_Base::set();
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return *this;
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}
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 186. bitset::set() second parameter should be bool
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bitset<_Nb>&
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set(size_t __pos, bool __val = true)
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{
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_Base::set(__pos, __val);
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return *this;
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}
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bitset<_Nb>&
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reset()
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{
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_Base::reset();
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return *this;
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}
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bitset<_Nb>&
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reset(size_t __pos)
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{
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_Base::reset(__pos);
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return *this;
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}
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bitset<_Nb> operator~() const { return bitset(~_M_base()); }
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bitset<_Nb>&
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flip()
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{
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_Base::flip();
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return *this;
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}
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bitset<_Nb>&
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flip(size_t __pos)
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{
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_Base::flip(__pos);
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return *this;
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}
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// element access:
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 11. Bitset minor problems
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reference
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operator[](size_t __pos)
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{
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__glibcxx_check_subscript(__pos);
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return reference(_M_base()[__pos], this);
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}
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 11. Bitset minor problems
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bool
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operator[](size_t __pos) const
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{
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__glibcxx_check_subscript(__pos);
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return _M_base()[__pos];
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}
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using _Base::to_ulong;
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template <typename _CharT, typename _Traits, typename _Allocator>
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std::basic_string<_CharT, _Traits, _Allocator>
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to_string() const
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{ return _M_base().template to_string<_CharT, _Traits, _Allocator>(); }
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 434. bitset::to_string() hard to use.
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template<typename _CharT, typename _Traits>
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std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
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to_string() const
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{ return to_string<_CharT, _Traits, std::allocator<_CharT> >(); }
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template<typename _CharT>
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std::basic_string<_CharT, std::char_traits<_CharT>,
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std::allocator<_CharT> >
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to_string() const
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{
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return to_string<_CharT, std::char_traits<_CharT>,
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std::allocator<_CharT> >();
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}
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std::basic_string<char, std::char_traits<char>, std::allocator<char> >
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to_string() const
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{
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return to_string<char,std::char_traits<char>,std::allocator<char> >();
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}
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using _Base::count;
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using _Base::size;
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bool
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operator==(const bitset<_Nb>& __rhs) const
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{ return _M_base() == __rhs; }
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bool
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operator!=(const bitset<_Nb>& __rhs) const
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{ return _M_base() != __rhs; }
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using _Base::test;
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using _Base::any;
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using _Base::none;
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bitset<_Nb>
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operator<<(size_t __pos) const
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{ return bitset<_Nb>(_M_base() << __pos); }
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bitset<_Nb>
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operator>>(size_t __pos) const
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{ return bitset<_Nb>(_M_base() >> __pos); }
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_Base&
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_M_base() { return *this; }
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const _Base&
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_M_base() const { return *this; }
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};
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template<size_t _Nb>
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bitset<_Nb>
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operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
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{ return bitset<_Nb>(__x) &= __y; }
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template<size_t _Nb>
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bitset<_Nb>
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operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
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{ return bitset<_Nb>(__x) |= __y; }
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template<size_t _Nb>
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bitset<_Nb>
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operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
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{ return bitset<_Nb>(__x) ^= __y; }
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template<typename _CharT, typename _Traits, size_t _Nb>
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std::basic_istream<_CharT, _Traits>&
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operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
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{ return __is >> __x._M_base(); }
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template<typename _CharT, typename _Traits, size_t _Nb>
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std::basic_ostream<_CharT, _Traits>&
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operator<<(std::basic_ostream<_CharT, _Traits>& __os,
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const bitset<_Nb>& __x)
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{ return __os << __x._M_base(); }
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} // namespace __debug
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} // namespace std
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#endif
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