_algobase.h

MONA是为数不多的C++语言编写的一个很小的操作系统

}

template <class _RAIter, class _Size, class _OutputIter>
inline pair<_RAIter, _OutputIter>
__copy_n(_RAIter __first, _Size __count,
         _OutputIter __result,
         const random_access_iterator_tag &) {
  _RAIter __last = __first + __count;
  return pair<_RAIter, _OutputIter>(__last, copy(__first, __last, __result));
}

template <class _InputIter, class _Size, class _OutputIter>
inline pair<_InputIter, _OutputIter>
__copy_n(_InputIter __first, _Size __count, _OutputIter __result) {
  _STLP_FIX_LITERAL_BUG(__first)
  return __copy_n(__first, __count, __result, _STLP_ITERATOR_CATEGORY(__first, _InputIter));
}

template <class _InputIter, class _Size, class _OutputIter>
inline pair<_InputIter, _OutputIter>
copy_n(_InputIter __first, _Size __count, _OutputIter __result) {
  _STLP_FIX_LITERAL_BUG(__first)
  return __copy_n(__first, __count, __result, _STLP_ITERATOR_CATEGORY(__first, _InputIter));
}

//--------------------------------------------------
// fill and fill_n


template <class _ForwardIter, class _Tp>
_STLP_INLINE_LOOP
void fill(_ForwardIter __first, _ForwardIter __last, const _Tp& __val) {
  _STLP_DEBUG_CHECK(__check_range(__first, __last))
  for ( ; __first != __last; ++__first)
    *__first = __val;
}

template <class _OutputIter, class _Size, class _Tp>
_STLP_INLINE_LOOP
_OutputIter fill_n(_OutputIter __first, _Size __n, const _Tp& __val) {
  _STLP_FIX_LITERAL_BUG(__first)
  for ( ; __n > 0; --__n, ++__first)
    *__first = __val;
  return __first;
}


// Specialization: for one-byte types we can use memset.

inline void fill(unsigned char* __first, unsigned char* __last,
                 const unsigned char& __val) {
  unsigned char __tmp = __val;
  memset(__first, __tmp, __last - __first);
}
# ifndef _STLP_NO_SIGNED_BUILTINS
inline void fill(signed char* __first, signed char* __last,
                 const signed char& __val) {
  signed char __tmp = __val;
  memset(__first, __STATIC_CAST(unsigned char,__tmp), __last - __first);
}
# endif
inline void fill(char* __first, char* __last, const char& __val) {
  char __tmp = __val;
  memset(__first, __STATIC_CAST(unsigned char,__tmp), __last - __first);
}

#ifdef _STLP_FUNCTION_TMPL_PARTIAL_ORDER

template <class _Size>
inline unsigned char* fill_n(unsigned char* __first, _Size __n,
                             const unsigned char& __val) {
  fill(__first, __first + __n, __val);
  return __first + __n;
}

template <class _Size>
inline signed char* fill_n(char* __first, _Size __n,
                           const signed char& __val) {
  fill(__first, __first + __n, __val);
  return __first + __n;
}

template <class _Size>
inline char* fill_n(char* __first, _Size __n, const char& __val) {
  fill(__first, __first + __n, __val);
  return __first + __n;
}

#endif /* _STLP_FUNCTION_TMPL_PARTIAL_ORDER */


//--------------------------------------------------
// equal and mismatch

template <class _InputIter1, class _InputIter2>
_STLP_INLINE_LOOP
pair<_InputIter1, _InputIter2> mismatch(_InputIter1 __first1,
                                        _InputIter1 __last1,
                                        _InputIter2 __first2) {
  _STLP_FIX_LITERAL_BUG(__first2)
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1))
  while (__first1 != __last1 && *__first1 == *__first2) {
    ++__first1;
    ++__first2;
  }
  return pair<_InputIter1, _InputIter2>(__first1, __first2);
}

template <class _InputIter1, class _InputIter2, class _BinaryPredicate>
_STLP_INLINE_LOOP
pair<_InputIter1, _InputIter2> mismatch(_InputIter1 __first1,
                                        _InputIter1 __last1,
                                        _InputIter2 __first2,
                                        _BinaryPredicate __binary_pred) {
  _STLP_FIX_LITERAL_BUG(__first2)
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1))
  while (__first1 != __last1 && __binary_pred(*__first1, *__first2)) {
    ++__first1;
    ++__first2;
  }
  return pair<_InputIter1, _InputIter2>(__first1, __first2);
}

template <class _InputIter1, class _InputIter2>
_STLP_INLINE_LOOP
bool equal(_InputIter1 __first1, _InputIter1 __last1,
                  _InputIter2 __first2) {
  _STLP_FIX_LITERAL_BUG(__first1) _STLP_FIX_LITERAL_BUG(__last1)  _STLP_FIX_LITERAL_BUG(__first2)
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1))
  for ( ; __first1 != __last1; ++__first1, ++__first2)
    if (!(*__first1 == *__first2))
      return false;
  return true;
}

template <class _InputIter1, class _InputIter2, class _BinaryPredicate>
_STLP_INLINE_LOOP
bool equal(_InputIter1 __first1, _InputIter1 __last1,
                  _InputIter2 __first2, _BinaryPredicate __binary_pred) {
  _STLP_FIX_LITERAL_BUG(__first2)
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1))
  for ( ; __first1 != __last1; ++__first1, ++__first2)
    if (!__binary_pred(*__first1, *__first2))
      return false;
  return true;
}

//--------------------------------------------------
// lexicographical_compare and lexicographical_compare_3way.
// (the latter is not part of the C++ standard.)

template <class _InputIter1, class _InputIter2>
bool lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1,
                             _InputIter2 __first2, _InputIter2 __last2);

template <class _InputIter1, class _InputIter2, class _Compare>
bool lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1,
                             _InputIter2 __first2, _InputIter2 __last2,
                             _Compare __comp);

inline bool 
lexicographical_compare(const unsigned char* __first1,
                        const unsigned char* __last1,
                        const unsigned char* __first2,
                        const unsigned char* __last2)
{
  const size_t __len1 = __last1 - __first1;
  const size_t __len2 = __last2 - __first2;
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1))
  _STLP_DEBUG_CHECK(__check_range(__first2, __last2))

  const int __result = memcmp(__first1, __first2, (min) (__len1, __len2));
  return __result != 0 ? (__result < 0) : (__len1 < __len2);
}


# if !(CHAR_MAX == SCHAR_MAX)
inline bool lexicographical_compare(const char* __first1, const char* __last1,
                                    const char* __first2, const char* __last2)
{
  _STLP_DEBUG_CHECK(__check_range(__first1, __last1)) 
  _STLP_DEBUG_CHECK(__check_range(__first2, __last2))

  return lexicographical_compare((const unsigned char*) __first1,
                                 (const unsigned char*) __last1,
                                 (const unsigned char*) __first2,
                                 (const unsigned char*) __last2);
}
#endif /* CHAR_MAX == SCHAR_MAX */

template <class _InputIter1, class _InputIter2>
int __lexicographical_compare_3way(_InputIter1 __first1, _InputIter1 __last1,
                                   _InputIter2 __first2, _InputIter2 __last2);

inline int
__lexicographical_compare_3way(const unsigned char* __first1,
                               const unsigned char* __last1,
                               const unsigned char* __first2,
                               const unsigned char* __last2)
{
  const ptrdiff_t __len1 = __last1 - __first1;
  const ptrdiff_t __len2 = __last2 - __first2;
  const int __result = memcmp(__first1, __first2, (min) (__len1, __len2));
  return __result != 0 ? __result 
                       : (__len1 == __len2 ? 0 : (__len1 < __len2 ? -1 : 1));
}


# if !(CHAR_MAX == SCHAR_MAX)
inline int 
__lexicographical_compare_3way(const char* __first1, const char* __last1,
                               const char* __first2, const char* __last2)
{
  return __lexicographical_compare_3way((const unsigned char*) __first1,
                                        (const unsigned char*) __last1,
                                        (const unsigned char*) __first2,
                                        (const unsigned char*) __last2);
}
# endif

# ifndef _STLP_NO_EXTENSIONS

template <class _InputIter1, class _InputIter2>
int lexicographical_compare_3way(_InputIter1 __first1, _InputIter1 __last1,
                                 _InputIter2 __first2, _InputIter2 __last2);

# endif /* EXTENSIONS */

// count
template <class _InputIter, class _Tp>
_STLP_INLINE_LOOP _STLP_DIFFERENCE_TYPE(_InputIter)
count(_InputIter __first, _InputIter __last, const _Tp& __val) {
  _STLP_DEBUG_CHECK(__check_range(__first, __last))
  _STLP_DIFFERENCE_TYPE(_InputIter) __n = 0;
  for ( ; __first != __last; ++__first)
    if (*__first == __val)
      ++__n;
  return __n;
}

// find and find_if. Note find may be expressed in terms of find_if if appropriate binder was available.
template <class _InputIter, class _Tp>
_InputIter find(_InputIter __first, _InputIter __last, const _Tp& __val);
template <class _InputIter, class _Predicate>
_InputIter find_if(_InputIter __first, _InputIter __last, _Predicate __pred);

// search.
template <class _ForwardIter1, class _ForwardIter2, class _BinaryPred>
_ForwardIter1 search(_ForwardIter1 __first1, _ForwardIter1 __last1,
                     _ForwardIter2 __first2, _ForwardIter2 __last2, _BinaryPred  __predicate);

// find_first_of
template <class _InputIter, class _ForwardIter, class _BinaryPredicate>
_InputIter __find_first_of(_InputIter __first1, _InputIter __last1,
                           _ForwardIter __first2, _ForwardIter __last2,
                           _BinaryPredicate __comp);

template <class _ForwardIter1, class _ForwardIter2, 
          class _BinaryPredicate>
_ForwardIter1 
find_end(_ForwardIter1 __first1, _ForwardIter1 __last1, 
         _ForwardIter2 __first2, _ForwardIter2 __last2,
         _BinaryPredicate __comp);

// replace
template <class _ForwardIter, class _Tp>
_STLP_INLINE_LOOP void 
replace(_ForwardIter __first, _ForwardIter __last,
        const _Tp& __old_value, const _Tp& __new_value) {
  _STLP_DEBUG_CHECK(__check_range(__first, __last))
  for ( ; __first != __last; ++__first)
    if (*__first == __old_value)
      *__first = __new_value;
}

template <class _ForwardIter, class _Tp, class _Compare, class _Distance>
_ForwardIter __lower_bound(_ForwardIter __first, _ForwardIter __last,
                              const _Tp& __val, _Compare __comp, _Distance*);

_STLP_END_NAMESPACE

# if !defined (_STLP_LINK_TIME_INSTANTIATION)
#  include <stl/_algobase.c>
# endif

#endif /* _STLP_INTERNAL_ALGOBASE_H */

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