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diff --git a/libstdc++-v3/include/debug/bitset b/libstdc++-v3/include/debug/bitset
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+++ b/libstdc++-v3/include/debug/bitset
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+// Debugging bitset implementation -*- C++ -*-
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// 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/bitset
+ * This file is a GNU debug extension to the Standard C++ Library.
+ */
+
+#ifndef _GLIBCXX_DEBUG_BITSET
+#define _GLIBCXX_DEBUG_BITSET
+
+#include
+#include
+#include
+
+namespace std
+{
+namespace __debug
+{
+ template
+ class bitset
+ : public _GLIBCXX_STD_D::bitset<_Nb>,
+ public __gnu_debug::_Safe_sequence_base
+ {
+ typedef _GLIBCXX_STD_D::bitset<_Nb> _Base;
+ typedef __gnu_debug::_Safe_sequence_base _Safe_base;
+
+ public:
+ // bit reference:
+ class reference
+ : private _Base::reference, public __gnu_debug::_Safe_iterator_base
+ {
+ typedef typename _Base::reference _Base_ref;
+
+ friend class bitset;
+ reference();
+
+ reference(const _Base_ref& __base, bitset* __seq)
+ : _Base_ref(__base), _Safe_iterator_base(__seq, false)
+ { }
+
+ public:
+ reference(const reference& __x)
+ : _Base_ref(__x), _Safe_iterator_base(__x, false)
+ { }
+
+ reference&
+ operator=(bool __x)
+ {
+ _GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_write)
+ ._M_iterator(*this));
+ *static_cast<_Base_ref*>(this) = __x;
+ return *this;
+ }
+
+ reference&
+ operator=(const reference& __x)
+ {
+ _GLIBCXX_DEBUG_VERIFY(! __x._M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_read)
+ ._M_iterator(__x));
+ _GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_write)
+ ._M_iterator(*this));
+ *static_cast<_Base_ref*>(this) = __x;
+ return *this;
+ }
+
+ bool
+ operator~() const
+ {
+ _GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_read)
+ ._M_iterator(*this));
+ return ~(*static_cast(this));
+ }
+
+ operator bool() const
+ {
+ _GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_read)
+ ._M_iterator(*this));
+ return *static_cast(this);
+ }
+
+ reference&
+ flip()
+ {
+ _GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
+ _M_message(__gnu_debug::__msg_bad_bitset_flip)
+ ._M_iterator(*this));
+ _Base_ref::flip();
+ return *this;
+ }
+ };
+
+ // 23.3.5.1 constructors:
+ bitset() : _Base() { }
+
+ bitset(unsigned long __val) : _Base(__val) { }
+
+ template
+ explicit
+ bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
+ typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
+ __pos = 0,
+ typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
+ __n = (std::basic_string<_CharT, _Traits, _Alloc>::npos))
+ : _Base(__str, __pos, __n) { }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 396. what are characters zero and one.
+ template
+ bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
+ typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
+ __pos,
+ typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
+ __n,
+ _CharT __zero, _CharT __one = _CharT('1'))
+ : _Base(__str, __pos, __n, __zero, __one) { }
+
+ bitset(const _Base& __x) : _Base(__x), _Safe_base() { }
+
+ // 23.3.5.2 bitset operations:
+ bitset<_Nb>&
+ operator&=(const bitset<_Nb>& __rhs)
+ {
+ _M_base() &= __rhs;
+ return *this;
+ }
+
+ bitset<_Nb>&
+ operator|=(const bitset<_Nb>& __rhs)
+ {
+ _M_base() |= __rhs;
+ return *this;
+ }
+
+ bitset<_Nb>&
+ operator^=(const bitset<_Nb>& __rhs)
+ {
+ _M_base() ^= __rhs;
+ return *this;
+ }
+
+ bitset<_Nb>&
+ operator<<=(size_t __pos)
+ {
+ _M_base() <<= __pos;
+ return *this;
+ }
+
+ bitset<_Nb>&
+ operator>>=(size_t __pos)
+ {
+ _M_base() >>= __pos;
+ return *this;
+ }
+
+ bitset<_Nb>&
+ set()
+ {
+ _Base::set();
+ return *this;
+ }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 186. bitset::set() second parameter should be bool
+ bitset<_Nb>&
+ set(size_t __pos, bool __val = true)
+ {
+ _Base::set(__pos, __val);
+ return *this;
+ }
+
+ bitset<_Nb>&
+ reset()
+ {
+ _Base::reset();
+ return *this;
+ }
+
+ bitset<_Nb>&
+ reset(size_t __pos)
+ {
+ _Base::reset(__pos);
+ return *this;
+ }
+
+ bitset<_Nb> operator~() const { return bitset(~_M_base()); }
+
+ bitset<_Nb>&
+ flip()
+ {
+ _Base::flip();
+ return *this;
+ }
+
+ bitset<_Nb>&
+ flip(size_t __pos)
+ {
+ _Base::flip(__pos);
+ return *this;
+ }
+
+ // element access:
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 11. Bitset minor problems
+ reference
+ operator[](size_t __pos)
+ {
+ __glibcxx_check_subscript(__pos);
+ return reference(_M_base()[__pos], this);
+ }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 11. Bitset minor problems
+ bool
+ operator[](size_t __pos) const
+ {
+ __glibcxx_check_subscript(__pos);
+ return _M_base()[__pos];
+ }
+
+ using _Base::to_ulong;
+
+ template
+ std::basic_string<_CharT, _Traits, _Alloc>
+ to_string() const
+ { return _M_base().template to_string<_CharT, _Traits, _Alloc>(); }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 396. what are characters zero and one.
+ template
+ std::basic_string<_CharT, _Traits, _Alloc>
+ to_string(_CharT __zero, _CharT __one = _CharT('1')) const
+ {
+ return _M_base().template
+ to_string<_CharT, _Traits, _Alloc>(__zero, __one);
+ }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 434. bitset::to_string() hard to use.
+ template
+ std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
+ to_string() const
+ { return to_string<_CharT, _Traits, std::allocator<_CharT> >(); }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 853. to_string needs updating with zero and one.
+ template
+ std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
+ to_string(_CharT __zero, _CharT __one = _CharT('1')) const
+ { return to_string<_CharT, _Traits,
+ std::allocator<_CharT> >(__zero, __one); }
+
+ template
+ std::basic_string<_CharT, std::char_traits<_CharT>,
+ std::allocator<_CharT> >
+ to_string() const
+ {
+ return to_string<_CharT, std::char_traits<_CharT>,
+ std::allocator<_CharT> >();
+ }
+
+ template
+ std::basic_string<_CharT, std::char_traits<_CharT>,
+ std::allocator<_CharT> >
+ to_string(_CharT __zero, _CharT __one = _CharT('1')) const
+ {
+ return to_string<_CharT, std::char_traits<_CharT>,
+ std::allocator<_CharT> >(__zero, __one);
+ }
+
+ std::basic_string, std::allocator >
+ to_string() const
+ {
+ return to_string,std::allocator >();
+ }
+
+ std::basic_string, std::allocator >
+ to_string(char __zero, char __one = '1') const
+ {
+ return to_string,
+ std::allocator >(__zero, __one);
+ }
+
+ using _Base::count;
+ using _Base::size;
+
+ bool
+ operator==(const bitset<_Nb>& __rhs) const
+ { return _M_base() == __rhs; }
+
+ bool
+ operator!=(const bitset<_Nb>& __rhs) const
+ { return _M_base() != __rhs; }
+
+ using _Base::test;
+ using _Base::all;
+ using _Base::any;
+ using _Base::none;
+
+ bitset<_Nb>
+ operator<<(size_t __pos) const
+ { return bitset<_Nb>(_M_base() << __pos); }
+
+ bitset<_Nb>
+ operator>>(size_t __pos) const
+ { return bitset<_Nb>(_M_base() >> __pos); }
+
+ _Base&
+ _M_base() { return *this; }
+
+ const _Base&
+ _M_base() const { return *this; }
+ };
+
+ template
+ bitset<_Nb>
+ operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+ { return bitset<_Nb>(__x) &= __y; }
+
+ template
+ bitset<_Nb>
+ operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+ { return bitset<_Nb>(__x) |= __y; }
+
+ template
+ bitset<_Nb>
+ operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+ { return bitset<_Nb>(__x) ^= __y; }
+
+ template
+ std::basic_istream<_CharT, _Traits>&
+ operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
+ { return __is >> __x._M_base(); }
+
+ template
+ std::basic_ostream<_CharT, _Traits>&
+ operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+ const bitset<_Nb>& __x)
+ { return __os << __x._M_base(); }
+} // namespace __debug
+} // namespace std
+
+#endif