stl_bitset.h

粗糙集应用软件

  // 23.3.5.1 constructors:
  bitset() {}
  bitset(unsigned long __val) : 
    _Base_bitset<__BITSET_WORDS(_Nb,_WordT), _WordT>(__val) {}
# ifdef __STL_MEMBER_TEMPLATES
  template<class _CharT, class _Traits, class _Alloc>
  explicit bitset(const basic_string<_CharT,_Traits,_Alloc>& __s,
                  size_t __pos = 0)
    : _Base_bitset<__BITSET_WORDS(_Nb,_WordT), _WordT>() 
  {
    if (__pos > __s.size()) 
      __STL_THROW(out_of_range("bitset"));
    _M_copy_from_string(__s, __pos,
                        basic_string<_CharT, _Traits, _Alloc>::npos);
  }
  template<class _CharT, class _Traits, class _Alloc>
  bitset(const basic_string<_CharT, _Traits, _Alloc>& __s,
          size_t __pos,
          size_t __n)
  : _Base_bitset<__BITSET_WORDS(_Nb,_WordT), _WordT>() 
  {
    if (__pos > __s.size()) 
      __STL_THROW(out_of_range("bitset"));
    _M_copy_from_string(__s, __pos, __n);
  }
#else /* __STL_MEMBER_TEMPLATES */
  explicit bitset(const string& __s,
                  size_t __pos = 0,
                  size_t __n = (size_t)-1) 
    : _Base_bitset<__BITSET_WORDS(_Nb,_WordT), _WordT>() 
  {
    if (__pos > __s.size()) 
      __STL_THROW(out_of_range("bitset"));
    _M_copy_from_string(__s, __pos, __n);
  }
#endif /* __STL_MEMBER_TEMPLATES */

  // 23.3.5.2 bitset operations:
  bitset<_Nb,_WordT>& operator&=(const bitset<_Nb,_WordT>& __rhs) {
    _Base::_M_do_and(__rhs);
    return *this;
  }

  bitset<_Nb,_WordT>& operator|=(const bitset<_Nb,_WordT>& __rhs) {
    _Base::_M_do_or(__rhs);
    return *this;
  }

  bitset<_Nb,_WordT>& operator^=(const bitset<_Nb,_WordT>& __rhs) {
    _Base::_M_do_xor(__rhs);
    return *this;
  }

  bitset<_Nb,_WordT>& operator<<=(size_t __pos) {
    _Base::_M_do_left_shift(__pos);
    _M_do_sanitize();
    return *this;
  }

  bitset<_Nb,_WordT>& operator>>=(size_t __pos) {
    _Base::_M_do_right_shift(__pos);
    _M_do_sanitize();
    return *this;
  }

  //
  // Extension:
  // Versions of single-bit set, reset, flip, test with no range checking.
  //

  bitset<_Nb,_WordT>& _Unchecked_set(size_t __pos) {
    _Base::_M_getword(__pos) |= _Base::_S_maskbit(__pos);
    return *this;
  }

  bitset<_Nb,_WordT>& _Unchecked_set(size_t __pos, int __val) {
    if (__val)
      _Base::_M_getword(__pos) |= _Base::_S_maskbit(__pos);
    else
      _Base::_M_getword(__pos) &= ~ _Base::_S_maskbit(__pos);

    return *this;
  }

  bitset<_Nb,_WordT>& _Unchecked_reset(size_t __pos) {
    _Base::_M_getword(__pos) &= ~ _Base::_S_maskbit(__pos);
    return *this;
  }

  bitset<_Nb,_WordT>& _Unchecked_flip(size_t __pos) {
    _Base::_M_getword(__pos) ^= _Base::_S_maskbit(__pos);
    return *this;
  }

  bool _Unchecked_test(size_t __pos) const {
    return (_Base::_M_getword(__pos) & _Base::_S_maskbit(__pos)) != __STATIC_CAST(_WordT,0);
  }

  // Set, reset, and flip.

  bitset<_Nb,_WordT>& set() {
    _Base::_M_do_set();
    _M_do_sanitize();
    return *this;
  }

  bitset<_Nb,_WordT>& set(size_t __pos) {
    if (__pos >= _Nb)
      __STL_THROW(out_of_range("bitset"));

    return _Unchecked_set(__pos);
  }

  bitset<_Nb,_WordT>& set(size_t __pos, int __val) {
    if (__pos >= _Nb)
      __STL_THROW(out_of_range("bitset"));

    return _Unchecked_set(__pos, __val);
  }

  bitset<_Nb,_WordT>& reset() {
    _Base::_M_do_reset();
    return *this;
  }

  bitset<_Nb,_WordT>& reset(size_t __pos) {
    if (__pos >= _Nb)
      __STL_THROW(out_of_range("bitset"));

    return _Unchecked_reset(__pos);
  }

  bitset<_Nb,_WordT>& flip() {
    _Base::_M_do_flip();
    _M_do_sanitize();
    return *this;
  }

  bitset<_Nb,_WordT>& flip(size_t __pos) {
    if (__pos >= _Nb)
      __STL_THROW(out_of_range("bitset"));

    return _Unchecked_flip(__pos);
  }

  bitset<_Nb,_WordT> operator~() const { 
    return bitset<_Nb,_WordT>(*this).flip();
  }

  // element access:
  //for b[i];
  reference operator[](size_t __pos) { return reference(*this,__pos); }
  bool operator[](size_t __pos) const { return _Unchecked_test(__pos); }

  unsigned long to_ulong() const { return _Base::_M_do_to_ulong(); }

#if defined (__STL_MEMBER_TEMPLATES) && \
    defined (__STL_EXPLICIT_FUNCTION_TMPL_ARGS)
  template <class _CharT, class _Traits, class _Alloc>
  basic_string<_CharT, _Traits, _Alloc> to_string() const {
    basic_string<_CharT, _Traits, _Alloc> __result;
    _M_copy_to_string(__result);
    return __result;
  }
#else
  string to_string() const {
    string __result;
    _M_copy_to_string(__result);
    return __result;
  }
#endif /* __STL_EXPLICIT_FUNCTION_TMPL_ARGS */

  size_t count() const { return _Base::_M_do_count(); }

  size_t size() const { return _Nb; }

  bool operator==(const bitset<_Nb,_WordT>& __rhs) const {
    return _Base::_M_is_equal(__rhs);
  }
  bool operator!=(const bitset<_Nb,_WordT>& __rhs) const {
    return !_Base::_M_is_equal(__rhs);
  }

  bool test(size_t __pos) const {
    if (__pos > _Nb)
      __STL_THROW(out_of_range("bitset"));

    return _Unchecked_test(__pos);
  }

  bool any() const { return _Base::_M_is_any(); }
  bool none() const { return !_Base::_M_is_any(); }

  bitset<_Nb,_WordT> operator<<(size_t __pos) const { 
    bitset<_Nb,_WordT> __result(*this);
    __result <<= __pos ;  return __result; 
  }
  bitset<_Nb,_WordT> operator>>(size_t __pos) const { 
    bitset<_Nb,_WordT> __result(*this);
    __result >>= __pos ;  return __result; 
  }

  //
  // EXTENSIONS: bit-find operations.  These operations are
  // experimental, and are subject to change or removal in future
  // versions.
  // 

  // find the index of the first "on" bit
  size_t _Find_first() const 
    { return _Base::_M_do_find_first(_Nb); }

  // find the index of the next "on" bit after prev
  size_t _Find_next( size_t __prev ) const 
    { return _Base::_M_do_find_next(__prev, _Nb); }

//
// Definitions of should-be non-inline member functions.
//
# if defined (__STL_MEMBER_TEMPLATES)
  template<class _CharT, class _Traits, class _Alloc>
    void _M_copy_from_string(const basic_string<_CharT,_Traits,_Alloc>& __s,
			     size_t __pos,
			     size_t __n)
#else
    void _M_copy_from_string(const string& __s,
			     size_t __pos,
			     size_t __n)
#endif
    {
      reset();
      size_t __tmp = _Nb;
      const size_t __Nbits = min(__tmp, min(__n, __s.size() - __pos));
      for ( size_t __i= 0; __i < __Nbits; ++__i) {
	switch(__s[__pos + __Nbits - __i - 1]) {
	case '0':
	  break;
	case '1':
	  set(__i);
	  break;
	default:
	  __STL_THROW(invalid_argument("bitset"));
	}
      }
    }
  
# if defined (__STL_MEMBER_TEMPLATES)
  template <class _CharT, class _Traits, class _Alloc>
    void _M_copy_to_string(basic_string<_CharT, _Traits, _Alloc>& __s) const
# else
    void _M_copy_to_string(string& __s) const
# endif
    {
      __s.assign(_Nb, '0');
      
      for (size_t __i = 0; __i < _Nb; ++__i) 
	if (_Unchecked_test(__i))
	  __s[_Nb - 1 - __i] = '1';
    }

# if defined (__STL_NON_TYPE_TMPL_PARAM_BUG)
  bitset<_Nb,_WordT> operator&(const bitset<_Nb,_WordT>& __y) {
    bitset<_Nb,_WordT> __result(*this);
    __result &= __y;
    return __result;
  }
  bitset<_Nb,_WordT> operator|(const bitset<_Nb,_WordT>& __y) {
    bitset<_Nb,_WordT> __result(*this);
    __result |= __y;
    return __result;
  }
  bitset<_Nb,_WordT> operator^(const bitset<_Nb,_WordT>& __y) {
    bitset<_Nb,_WordT> __result(*this);
    __result ^= __y;
    return __result;
  }
# endif 
};

// ------------------------------------------------------------

//
// 23.3.5.3 bitset operations:
//

# if ! defined (__STL_NON_TYPE_TMPL_PARAM_BUG)
template <size_t _Nb, class _WordT>
inline bitset<_Nb,_WordT> operator&(const bitset<_Nb,_WordT>& __x,
                                    const bitset<_Nb,_WordT>& __y) {
  bitset<_Nb,_WordT> __result(__x);
  __result &= __y;
  return __result;
}


template <size_t _Nb, class _WordT>
inline bitset<_Nb,_WordT> operator|(const bitset<_Nb,_WordT>& __x,
                                    const bitset<_Nb,_WordT>& __y) {
  bitset<_Nb,_WordT> __result(__x);
  __result |= __y;
  return __result;
}

template <size_t _Nb, class _WordT>
inline bitset<_Nb,_WordT> operator^(const bitset<_Nb,_WordT>& __x,
                                    const bitset<_Nb,_WordT>& __y) {
  bitset<_Nb,_WordT> __result(__x);
  __result ^= __y;
  return __result;
}

#ifdef __STL_USE_NEW_IOSTREAMS
template <class _CharT, class _Traits, size_t _Nb, class _WordT>
basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Nb,_WordT>& __x);


template <class _CharT, class _Traits, size_t _Nb, class _WordT>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
           const bitset<_Nb,_WordT>& __x);
#else
template <size_t _Nb, class _WordT>
istream&
operator>>(istream& __is, bitset<_Nb,_WordT>& __x);

template <size_t _Nb, class _WordT>
inline ostream& operator<<(ostream& __os, const bitset<_Nb,_WordT>& __x) {
  string __tmp;
  __x._M_copy_to_string(__tmp);
  return __os << __tmp;
}

#endif

# endif /* __STL_NON_TYPE_TMPL_PARAM_BUG */

#  undef  bitset

# if defined (__STL_DEFAULT_TYPE_PARAM)
#  define __bitset__ bitset
# else
#  define __bitset__ __bitset
// provide a "default" bitset adaptor
template <size_t _Nb>
class bitset : public __bitset__<_Nb, __stl_ulong>
{
public:
#   define _BS_SUPER __bitset__<_Nb, __stl_ulong >
  typedef _BS_SUPER  _Super;
  typedef typename _BS_SUPER::reference reference;                                 \
  __IMPORT_SUPER_COPY_ASSIGNMENT(bitset, bitset<_Nb>, _BS_SUPER)
  bitset() {}
  explicit bitset(const unsigned long __val) : _BS_SUPER(__val) { }
  explicit bitset(const string& __s,
		  size_t __pos = 0,
		  size_t __n = (size_t)-1) : _BS_SUPER(__s, __pos, __n) {}
  ~bitset() {}

#  if defined (__STL_BASE_MATCH_BUG)
  bool operator==(const bitset<_Nb>& __y) {
    return operator == ((const _Super&)*this,(const _Super&)__y);
  }
  bool operator<(const bitset<_Nb>& __y) {
    return operator < ((const _Super&)*this,(const _Super&)__y);
  }
#  endif /* __STL_BASE_MATCH_BUG */

};

#  undef _BS_SUPER

# endif /* __STL_DEFAULT_TYPE_PARAM */

#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
#pragma reset woff 1209
#endif

__STL_END_NAMESPACE

#  undef __BITS_PER_WORDT
#  undef __BITSET_WORDS

#if defined(__IBMCPP__)
#pragma info(restore) 
#endif

# if !defined (__STL_LINK_TIME_INSTANTIATION)
#  include <stl_bitset.c>
# endif

#endif /* __SGI_STL_BITSET_H */


// Local Variables:
// mode:C++
// End: