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bitset
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2005-01-29
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// Debugging bitset implementation -*- C++ -*-
// Copyright (C) 2003, 2004
// 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 2, 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.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#ifndef _GLIBCXX_DEBUG_BITSET
#define _GLIBCXX_DEBUG_BITSET
#include <bitset>
#include <debug/safe_sequence.h>
#include <debug/safe_iterator.h>
namespace __gnu_debug_def
{
template<size_t _Nb>
class bitset
: public _GLIBCXX_STD::bitset<_Nb>,
public __gnu_debug::_Safe_sequence_base
{
typedef _GLIBCXX_STD::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<const _Base_ref*>(this));
}
operator bool() const
{
_GLIBCXX_DEBUG_VERIFY(! this->_M_singular(),
_M_message(::__gnu_debug::__msg_bad_bitset_read)
._M_iterator(*this));
return *static_cast<const _Base_ref*>(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<typename _CharT, typename _Traits, typename _Allocator>
explicit
bitset(const std::basic_string<_CharT,_Traits,_Allocator>& __str,
typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
__pos = 0,
typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
__n = (std::basic_string<_CharT,_Traits,_Allocator>::npos))
: _Base(__str, __pos, __n) { }
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 <typename _CharT, typename _Traits, typename _Allocator>
std::basic_string<_CharT, _Traits, _Allocator>
to_string() const
{ return _M_base().template to_string<_CharT, _Traits, _Allocator>(); }
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::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<size_t _Nb>
bitset<_Nb>
operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
{ return bitset<_Nb>(__x) &= __y; }
template<size_t _Nb>
bitset<_Nb>
operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
{ return bitset<_Nb>(__x) |= __y; }
template<size_t _Nb>
bitset<_Nb>
operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
{ return bitset<_Nb>(__x) ^= __y; }
template<typename _CharT, typename _Traits, size_t _Nb>
std::basic_istream<_CharT, _Traits>&
operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
{ return __is >> __x._M_base(); }
template<typename _CharT, typename _Traits, size_t _Nb>
std::basic_ostream<_CharT, _Traits>&
operator<<(std::basic_ostream<_CharT, _Traits>& __os,
const bitset<_Nb>& __x)
{ return __os << __x._M_base(); }
} // namespace __gnu_debug_def
#endif