#ifndef __GLIBCPP_INTERNAL_ALGOBASE_H
#define __GLIBCPP_INTERNAL_ALGOBASE_H
#include <bits/c++config.h>
#include <cstring>
#include <climits>
#include <cstdlib>
#include <cstddef>
#include <new>
#include <iosfwd>
#include <bits/stl_pair.h>
#include <bits/type_traits.h>
#include <bits/stl_iterator_base_types.h>
#include <bits/stl_iterator_base_funcs.h>
#include <bits/stl_iterator.h>
#include <bits/concept_check.h>
namespace std
{
template<typename _ForwardIter1, typename _ForwardIter2>
inline void
iter_swap(_ForwardIter1 __a, _ForwardIter2 __b)
{
typedef typename iterator_traits<_ForwardIter1>::value_type _ValueType1;
typedef typename iterator_traits<_ForwardIter2>::value_type _ValueType2;
__glibcpp_function_requires(_Mutable_ForwardIteratorConcept<_ForwardIter1>)
__glibcpp_function_requires(_Mutable_ForwardIteratorConcept<_ForwardIter2>)
__glibcpp_function_requires(_ConvertibleConcept<_ValueType1, _ValueType2>)
__glibcpp_function_requires(_ConvertibleConcept<_ValueType2, _ValueType1>)
_ValueType1 __tmp = *__a;
*__a = *__b;
*__b = __tmp;
}
template<typename _Tp>
inline void
swap(_Tp& __a, _Tp& __b)
{
__glibcpp_function_requires(_SGIAssignableConcept<_Tp>)
_Tp __tmp = __a;
__a = __b;
__b = __tmp;
}
#undef min
#undef max
template<typename _Tp>
inline const _Tp&
min(const _Tp& __a, const _Tp& __b)
{
__glibcpp_function_requires(_LessThanComparableConcept<_Tp>)
if (__b < __a) return __b; return __a;
}
template<typename _Tp>
inline const _Tp&
max(const _Tp& __a, const _Tp& __b)
{
__glibcpp_function_requires(_LessThanComparableConcept<_Tp>)
if (__a < __b) return __b; return __a;
}
template<typename _Tp, typename _Compare>
inline const _Tp&
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
{
if (__comp(__b, __a)) return __b; return __a;
}
template<typename _Tp, typename _Compare>
inline const _Tp&
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
{
if (__comp(__a, __b)) return __b; return __a;
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy(_InputIter __first, _InputIter __last,
_OutputIter __result,
input_iterator_tag)
{
for ( ; __first != __last; ++__result, ++__first)
*__result = *__first;
return __result;
}
template<typename _RandomAccessIter, typename _OutputIter>
inline _OutputIter
__copy(_RandomAccessIter __first, _RandomAccessIter __last,
_OutputIter __result,
random_access_iterator_tag)
{
typedef typename iterator_traits<_RandomAccessIter>::difference_type
_Distance;
for (_Distance __n = __last - __first; __n > 0; --__n) {
*__result = *__first;
++__first;
++__result;
}
return __result;
}
template<typename _Tp>
inline _Tp*
__copy_trivial(const _Tp* __first, const _Tp* __last, _Tp* __result)
{
memmove(__result, __first, sizeof(_Tp) * (__last - __first));
return __result + (__last - __first);
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_aux2(_InputIter __first, _InputIter __last,
_OutputIter __result, __false_type)
{ return __copy(__first, __last, __result, __iterator_category(__first)); }
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_aux2(_InputIter __first, _InputIter __last,
_OutputIter __result, __true_type)
{ return __copy(__first, __last, __result, __iterator_category(__first)); }
template<typename _Tp>
inline _Tp*
__copy_aux2(_Tp* __first, _Tp* __last,
_Tp* __result, __true_type)
{ return __copy_trivial(__first, __last, __result); }
template<typename _Tp>
inline _Tp*
__copy_aux2(const _Tp* __first, const _Tp* __last,
_Tp* __result, __true_type)
{ return __copy_trivial(__first, __last, __result); }
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_ni2(_InputIter __first, _InputIter __last,
_OutputIter __result, __true_type)
{
typedef typename iterator_traits<_InputIter>::value_type
_ValueType;
typedef typename __type_traits<_ValueType>::has_trivial_assignment_operator
_Trivial;
return _OutputIter(__copy_aux2(__first, __last,
__result.base(),
_Trivial()));
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_ni2(_InputIter __first, _InputIter __last,
_OutputIter __result, __false_type)
{
typedef typename iterator_traits<_InputIter>::value_type
_ValueType;
typedef typename __type_traits<_ValueType>::has_trivial_assignment_operator
_Trivial;
return __copy_aux2(__first, __last,
__result,
_Trivial());
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_ni1(_InputIter __first, _InputIter __last,
_OutputIter __result, __true_type)
{
typedef typename _Is_normal_iterator<_OutputIter>::_Normal __Normal;
return __copy_ni2(__first.base(), __last.base(), __result, __Normal());
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
__copy_ni1(_InputIter __first, _InputIter __last,
_OutputIter __result, __false_type)
{
typedef typename _Is_normal_iterator<_OutputIter>::_Normal __Normal;
return __copy_ni2(__first, __last, __result, __Normal());
}
template<typename _InputIter, typename _OutputIter>
inline _OutputIter
copy(_InputIter __first, _InputIter __last, _OutputIter __result)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter>)
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIter,
typename iterator_traits<_InputIter>::value_type>)
typedef typename _Is_normal_iterator<_InputIter>::_Normal __Normal;
return __copy_ni1(__first, __last, __result, __Normal());
}
template<typename _BidirectionalIter1, typename _BidirectionalIter2>
inline _BidirectionalIter2
__copy_backward(_BidirectionalIter1 __first, _BidirectionalIter1 __last,
_BidirectionalIter2 __result,
bidirectional_iterator_tag)
{
while (__first != __last)
*--__result = *--__last;
return __result;
}
template<typename _RandomAccessIter, typename _BidirectionalIter>
inline _BidirectionalIter
__copy_backward(_RandomAccessIter __first, _RandomAccessIter __last,
_BidirectionalIter __result,
random_access_iterator_tag)
{
typename iterator_traits<_RandomAccessIter>::difference_type __n;
for (__n = __last - __first; __n > 0; --__n)
*--__result = *--__last;
return __result;
}
template<typename _BidirectionalIter1, typename _BidirectionalIter2,
typename _BoolType>
struct __copy_backward_dispatch
{
static _BidirectionalIter2
copy(_BidirectionalIter1 __first, _BidirectionalIter1 __last,
_BidirectionalIter2 __result)
{
return __copy_backward(__first, __last,
__result,
__iterator_category(__first));
}
};
template<typename _Tp>
struct __copy_backward_dispatch<_Tp*, _Tp*, __true_type>
{
static _Tp*
copy(const _Tp* __first, const _Tp* __last, _Tp* __result)
{
const ptrdiff_t _Num = __last - __first;
memmove(__result - _Num, __first, sizeof(_Tp) * _Num);
return __result - _Num;
}
};
template<typename _Tp>
struct __copy_backward_dispatch<const _Tp*, _Tp*, __true_type>
{
static _Tp*
copy(const _Tp* __first, const _Tp* __last, _Tp* __result)
{
return __copy_backward_dispatch<_Tp*, _Tp*, __true_type>
::copy(__first, __last, __result);
}
};
template<typename _BI1, typename _BI2>
inline _BI2
__copy_backward_aux(_BI1 __first, _BI1 __last, _BI2 __result)
{
typedef typename __type_traits<typename iterator_traits<_BI2>::value_type>
::has_trivial_assignment_operator _Trivial;
return __copy_backward_dispatch<_BI1, _BI2, _Trivial>
::copy(__first, __last, __result);
}
template <typename _BI1, typename _BI2>
inline _BI2
__copy_backward_output_normal_iterator(_BI1 __first, _BI1 __last,
_BI2 __result, __true_type)
{ return _BI2(__copy_backward_aux(__first, __last, __result.base())); }
template <typename _BI1, typename _BI2>
inline _BI2
__copy_backward_output_normal_iterator(_BI1 __first, _BI1 __last,
_BI2 __result, __false_type)
{ return __copy_backward_aux(__first, __last, __result); }
template <typename _BI1, typename _BI2>
inline _BI2
__copy_backward_input_normal_iterator(_BI1 __first, _BI1 __last,
_BI2 __result, __true_type)
{
typedef typename _Is_normal_iterator<_BI2>::_Normal __Normal;
return __copy_backward_output_normal_iterator(__first.base(), __last.base(),
__result, __Normal());
}
template <typename _BI1, typename _BI2>
inline _BI2
__copy_backward_input_normal_iterator(_BI1 __first, _BI1 __last,
_BI2 __result, __false_type)
{
typedef typename _Is_normal_iterator<_BI2>::_Normal __Normal;
return __copy_backward_output_normal_iterator(__first, __last, __result,
__Normal());
}
template <typename _BI1, typename _BI2>
inline _BI2
copy_backward(_BI1 __first, _BI1 __last, _BI2 __result)
{
__glibcpp_function_requires(_BidirectionalIteratorConcept<_BI1>)
__glibcpp_function_requires(_Mutable_BidirectionalIteratorConcept<_BI2>)
__glibcpp_function_requires(_ConvertibleConcept<
typename iterator_traits<_BI1>::value_type,
typename iterator_traits<_BI2>::value_type>)
typedef typename _Is_normal_iterator<_BI1>::_Normal __Normal;
return __copy_backward_input_normal_iterator(__first, __last, __result,
__Normal());
}
template<typename _ForwardIter, typename _Tp>
void
fill(_ForwardIter __first, _ForwardIter __last, const _Tp& __value)
{
__glibcpp_function_requires(_Mutable_ForwardIteratorConcept<_ForwardIter>)
for ( ; __first != __last; ++__first)
*__first = __value;
}
template<typename _OutputIter, typename _Size, typename _Tp>
_OutputIter
fill_n(_OutputIter __first, _Size __n, const _Tp& __value)
{
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIter,_Tp>)
for ( ; __n > 0; --__n, ++__first)
*__first = __value;
return __first;
}
inline void
fill(unsigned char* __first, unsigned char* __last, const unsigned char& __c)
{
unsigned char __tmp = __c;
memset(__first, __tmp, __last - __first);
}
inline void
fill(signed char* __first, signed char* __last, const signed char& __c)
{
signed char __tmp = __c;
memset(__first, static_cast<unsigned char>(__tmp), __last - __first);
}
inline void
fill(char* __first, char* __last, const char& __c)
{
char __tmp = __c;
memset(__first, static_cast<unsigned char>(__tmp), __last - __first);
}
template<typename _Size>
inline unsigned char*
fill_n(unsigned char* __first, _Size __n, const unsigned char& __c)
{
fill(__first, __first + __n, __c);
return __first + __n;
}
template<typename _Size>
inline signed char*
fill_n(char* __first, _Size __n, const signed char& __c)
{
fill(__first, __first + __n, __c);
return __first + __n;
}
template<typename _Size>
inline char*
fill_n(char* __first, _Size __n, const char& __c)
{
fill(__first, __first + __n, __c);
return __first + __n;
}
template<typename _InputIter1, typename _InputIter2>
pair<_InputIter1, _InputIter2>
mismatch(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
__glibcpp_function_requires(_EqualityComparableConcept<
typename iterator_traits<_InputIter1>::value_type>)
__glibcpp_function_requires(_EqualityComparableConcept<
typename iterator_traits<_InputIter2>::value_type>)
while (__first1 != __last1 && *__first1 == *__first2) {
++__first1;
++__first2;
}
return pair<_InputIter1, _InputIter2>(__first1, __first2);
}
template<typename _InputIter1, typename _InputIter2, typename _BinaryPredicate>
pair<_InputIter1, _InputIter2>
mismatch(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2,
_BinaryPredicate __binary_pred)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
while (__first1 != __last1 && __binary_pred(*__first1, *__first2)) {
++__first1;
++__first2;
}
return pair<_InputIter1, _InputIter2>(__first1, __first2);
}
template<typename _InputIter1, typename _InputIter2>
inline bool
equal(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
__glibcpp_function_requires(_EqualOpConcept<
typename iterator_traits<_InputIter1>::value_type,
typename iterator_traits<_InputIter2>::value_type>)
for ( ; __first1 != __last1; ++__first1, ++__first2)
if (!(*__first1 == *__first2))
return false;
return true;
}
template<typename _InputIter1, typename _InputIter2, typename _BinaryPredicate>
inline bool
equal(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2,
_BinaryPredicate __binary_pred)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
for ( ; __first1 != __last1; ++__first1, ++__first2)
if (!__binary_pred(*__first1, *__first2))
return false;
return true;
}
template<typename _InputIter1, typename _InputIter2>
bool
lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2, _InputIter2 __last2)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
__glibcpp_function_requires(_LessThanComparableConcept<
typename iterator_traits<_InputIter1>::value_type>)
__glibcpp_function_requires(_LessThanComparableConcept<
typename iterator_traits<_InputIter2>::value_type>)
for ( ; __first1 != __last1 && __first2 != __last2
; ++__first1, ++__first2) {
if (*__first1 < *__first2)
return true;
if (*__first2 < *__first1)
return false;
}
return __first1 == __last1 && __first2 != __last2;
}
template<typename _InputIter1, typename _InputIter2, typename _Compare>
bool
lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2, _InputIter2 __last2,
_Compare __comp)
{
__glibcpp_function_requires(_InputIteratorConcept<_InputIter1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIter2>)
for ( ; __first1 != __last1 && __first2 != __last2
; ++__first1, ++__first2) {
if (__comp(*__first1, *__first2))
return true;
if (__comp(*__first2, *__first1))
return false;
}
return __first1 == __last1 && __first2 != __last2;
}
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;
const int __result = memcmp(__first1, __first2, min(__len1, __len2));
return __result != 0 ? __result < 0 : __len1 < __len2;
}
inline bool
lexicographical_compare(const char* __first1, const char* __last1,
const char* __first2, const char* __last2)
{
#if CHAR_MAX == SCHAR_MAX
return lexicographical_compare((const signed char*) __first1,
(const signed char*) __last1,
(const signed char*) __first2,
(const signed char*) __last2);
#else
return lexicographical_compare((const unsigned char*) __first1,
(const unsigned char*) __last1,
(const unsigned char*) __first2,
(const unsigned char*) __last2);
#endif
}
}
#endif