689 lines
21 KiB
C++
689 lines
21 KiB
C++
// Raw memory manipulators -*- C++ -*-
|
|
|
|
// Copyright (C) 2001-2016 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
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
/*
|
|
*
|
|
* Copyright (c) 1994
|
|
* Hewlett-Packard Company
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Hewlett-Packard Company makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
*
|
|
* Copyright (c) 1996,1997
|
|
* Silicon Graphics Computer Systems, Inc.
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Silicon Graphics makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*/
|
|
|
|
/** @file bits/stl_uninitialized.h
|
|
* This is an internal header file, included by other library headers.
|
|
* Do not attempt to use it directly. @headername{memory}
|
|
*/
|
|
|
|
#ifndef _STL_UNINITIALIZED_H
|
|
#define _STL_UNINITIALIZED_H 1
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
template<bool _TrivialValueTypes>
|
|
struct __uninitialized_copy
|
|
{
|
|
template<typename _InputIterator, typename _ForwardIterator>
|
|
static _ForwardIterator
|
|
__uninit_copy(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result)
|
|
{
|
|
_ForwardIterator __cur = __result;
|
|
__try
|
|
{
|
|
for (; __first != __last; ++__first, (void)++__cur)
|
|
std::_Construct(std::__addressof(*__cur), *__first);
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct __uninitialized_copy<true>
|
|
{
|
|
template<typename _InputIterator, typename _ForwardIterator>
|
|
static _ForwardIterator
|
|
__uninit_copy(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result)
|
|
{ return std::copy(__first, __last, __result); }
|
|
};
|
|
|
|
/**
|
|
* @brief Copies the range [first,last) into result.
|
|
* @param __first An input iterator.
|
|
* @param __last An input iterator.
|
|
* @param __result An output iterator.
|
|
* @return __result + (__first - __last)
|
|
*
|
|
* Like copy(), but does not require an initialized output range.
|
|
*/
|
|
template<typename _InputIterator, typename _ForwardIterator>
|
|
inline _ForwardIterator
|
|
uninitialized_copy(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result)
|
|
{
|
|
typedef typename iterator_traits<_InputIterator>::value_type
|
|
_ValueType1;
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType2;
|
|
#if __cplusplus < 201103L
|
|
const bool __assignable = true;
|
|
#else
|
|
// trivial types can have deleted assignment
|
|
typedef typename iterator_traits<_InputIterator>::reference _RefType1;
|
|
typedef typename iterator_traits<_ForwardIterator>::reference _RefType2;
|
|
const bool __assignable = is_assignable<_RefType2, _RefType1>::value;
|
|
#endif
|
|
|
|
return std::__uninitialized_copy<__is_trivial(_ValueType1)
|
|
&& __is_trivial(_ValueType2)
|
|
&& __assignable>::
|
|
__uninit_copy(__first, __last, __result);
|
|
}
|
|
|
|
|
|
template<bool _TrivialValueType>
|
|
struct __uninitialized_fill
|
|
{
|
|
template<typename _ForwardIterator, typename _Tp>
|
|
static void
|
|
__uninit_fill(_ForwardIterator __first, _ForwardIterator __last,
|
|
const _Tp& __x)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
for (; __cur != __last; ++__cur)
|
|
std::_Construct(std::__addressof(*__cur), __x);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct __uninitialized_fill<true>
|
|
{
|
|
template<typename _ForwardIterator, typename _Tp>
|
|
static void
|
|
__uninit_fill(_ForwardIterator __first, _ForwardIterator __last,
|
|
const _Tp& __x)
|
|
{ std::fill(__first, __last, __x); }
|
|
};
|
|
|
|
/**
|
|
* @brief Copies the value x into the range [first,last).
|
|
* @param __first An input iterator.
|
|
* @param __last An input iterator.
|
|
* @param __x The source value.
|
|
* @return Nothing.
|
|
*
|
|
* Like fill(), but does not require an initialized output range.
|
|
*/
|
|
template<typename _ForwardIterator, typename _Tp>
|
|
inline void
|
|
uninitialized_fill(_ForwardIterator __first, _ForwardIterator __last,
|
|
const _Tp& __x)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
#if __cplusplus < 201103L
|
|
const bool __assignable = true;
|
|
#else
|
|
// trivial types can have deleted assignment
|
|
const bool __assignable = is_copy_assignable<_ValueType>::value;
|
|
#endif
|
|
|
|
std::__uninitialized_fill<__is_trivial(_ValueType) && __assignable>::
|
|
__uninit_fill(__first, __last, __x);
|
|
}
|
|
|
|
|
|
template<bool _TrivialValueType>
|
|
struct __uninitialized_fill_n
|
|
{
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp>
|
|
static _ForwardIterator
|
|
__uninit_fill_n(_ForwardIterator __first, _Size __n,
|
|
const _Tp& __x)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
for (; __n > 0; --__n, ++__cur)
|
|
std::_Construct(std::__addressof(*__cur), __x);
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct __uninitialized_fill_n<true>
|
|
{
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp>
|
|
static _ForwardIterator
|
|
__uninit_fill_n(_ForwardIterator __first, _Size __n,
|
|
const _Tp& __x)
|
|
{ return std::fill_n(__first, __n, __x); }
|
|
};
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// DR 1339. uninitialized_fill_n should return the end of its range
|
|
/**
|
|
* @brief Copies the value x into the range [first,first+n).
|
|
* @param __first An input iterator.
|
|
* @param __n The number of copies to make.
|
|
* @param __x The source value.
|
|
* @return Nothing.
|
|
*
|
|
* Like fill_n(), but does not require an initialized output range.
|
|
*/
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp>
|
|
inline _ForwardIterator
|
|
uninitialized_fill_n(_ForwardIterator __first, _Size __n, const _Tp& __x)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
#if __cplusplus < 201103L
|
|
const bool __assignable = true;
|
|
#else
|
|
// trivial types can have deleted assignment
|
|
const bool __assignable = is_copy_assignable<_ValueType>::value;
|
|
#endif
|
|
return __uninitialized_fill_n<__is_trivial(_ValueType) && __assignable>::
|
|
__uninit_fill_n(__first, __n, __x);
|
|
}
|
|
|
|
// Extensions: versions of uninitialized_copy, uninitialized_fill,
|
|
// and uninitialized_fill_n that take an allocator parameter.
|
|
// We dispatch back to the standard versions when we're given the
|
|
// default allocator. For nondefault allocators we do not use
|
|
// any of the POD optimizations.
|
|
|
|
template<typename _InputIterator, typename _ForwardIterator,
|
|
typename _Allocator>
|
|
_ForwardIterator
|
|
__uninitialized_copy_a(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result, _Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __cur = __result;
|
|
__try
|
|
{
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
|
|
for (; __first != __last; ++__first, (void)++__cur)
|
|
__traits::construct(__alloc, std::__addressof(*__cur), *__first);
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __cur, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _InputIterator, typename _ForwardIterator, typename _Tp>
|
|
inline _ForwardIterator
|
|
__uninitialized_copy_a(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result, allocator<_Tp>&)
|
|
{ return std::uninitialized_copy(__first, __last, __result); }
|
|
|
|
template<typename _InputIterator, typename _ForwardIterator,
|
|
typename _Allocator>
|
|
inline _ForwardIterator
|
|
__uninitialized_move_a(_InputIterator __first, _InputIterator __last,
|
|
_ForwardIterator __result, _Allocator& __alloc)
|
|
{
|
|
return std::__uninitialized_copy_a(_GLIBCXX_MAKE_MOVE_ITERATOR(__first),
|
|
_GLIBCXX_MAKE_MOVE_ITERATOR(__last),
|
|
__result, __alloc);
|
|
}
|
|
|
|
template<typename _InputIterator, typename _ForwardIterator,
|
|
typename _Allocator>
|
|
inline _ForwardIterator
|
|
__uninitialized_move_if_noexcept_a(_InputIterator __first,
|
|
_InputIterator __last,
|
|
_ForwardIterator __result,
|
|
_Allocator& __alloc)
|
|
{
|
|
return std::__uninitialized_copy_a
|
|
(_GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(__first),
|
|
_GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(__last), __result, __alloc);
|
|
}
|
|
|
|
template<typename _ForwardIterator, typename _Tp, typename _Allocator>
|
|
void
|
|
__uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last,
|
|
const _Tp& __x, _Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
|
|
for (; __cur != __last; ++__cur)
|
|
__traits::construct(__alloc, std::__addressof(*__cur), __x);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _ForwardIterator, typename _Tp, typename _Tp2>
|
|
inline void
|
|
__uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last,
|
|
const _Tp& __x, allocator<_Tp2>&)
|
|
{ std::uninitialized_fill(__first, __last, __x); }
|
|
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp,
|
|
typename _Allocator>
|
|
_ForwardIterator
|
|
__uninitialized_fill_n_a(_ForwardIterator __first, _Size __n,
|
|
const _Tp& __x, _Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
|
|
for (; __n > 0; --__n, ++__cur)
|
|
__traits::construct(__alloc, std::__addressof(*__cur), __x);
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp,
|
|
typename _Tp2>
|
|
inline _ForwardIterator
|
|
__uninitialized_fill_n_a(_ForwardIterator __first, _Size __n,
|
|
const _Tp& __x, allocator<_Tp2>&)
|
|
{ return std::uninitialized_fill_n(__first, __n, __x); }
|
|
|
|
|
|
// Extensions: __uninitialized_copy_move, __uninitialized_move_copy,
|
|
// __uninitialized_fill_move, __uninitialized_move_fill.
|
|
// All of these algorithms take a user-supplied allocator, which is used
|
|
// for construction and destruction.
|
|
|
|
// __uninitialized_copy_move
|
|
// Copies [first1, last1) into [result, result + (last1 - first1)), and
|
|
// move [first2, last2) into
|
|
// [result, result + (last1 - first1) + (last2 - first2)).
|
|
template<typename _InputIterator1, typename _InputIterator2,
|
|
typename _ForwardIterator, typename _Allocator>
|
|
inline _ForwardIterator
|
|
__uninitialized_copy_move(_InputIterator1 __first1,
|
|
_InputIterator1 __last1,
|
|
_InputIterator2 __first2,
|
|
_InputIterator2 __last2,
|
|
_ForwardIterator __result,
|
|
_Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __mid = std::__uninitialized_copy_a(__first1, __last1,
|
|
__result,
|
|
__alloc);
|
|
__try
|
|
{
|
|
return std::__uninitialized_move_a(__first2, __last2, __mid, __alloc);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __mid, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
// __uninitialized_move_copy
|
|
// Moves [first1, last1) into [result, result + (last1 - first1)), and
|
|
// copies [first2, last2) into
|
|
// [result, result + (last1 - first1) + (last2 - first2)).
|
|
template<typename _InputIterator1, typename _InputIterator2,
|
|
typename _ForwardIterator, typename _Allocator>
|
|
inline _ForwardIterator
|
|
__uninitialized_move_copy(_InputIterator1 __first1,
|
|
_InputIterator1 __last1,
|
|
_InputIterator2 __first2,
|
|
_InputIterator2 __last2,
|
|
_ForwardIterator __result,
|
|
_Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __mid = std::__uninitialized_move_a(__first1, __last1,
|
|
__result,
|
|
__alloc);
|
|
__try
|
|
{
|
|
return std::__uninitialized_copy_a(__first2, __last2, __mid, __alloc);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __mid, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
// __uninitialized_fill_move
|
|
// Fills [result, mid) with x, and moves [first, last) into
|
|
// [mid, mid + (last - first)).
|
|
template<typename _ForwardIterator, typename _Tp, typename _InputIterator,
|
|
typename _Allocator>
|
|
inline _ForwardIterator
|
|
__uninitialized_fill_move(_ForwardIterator __result, _ForwardIterator __mid,
|
|
const _Tp& __x, _InputIterator __first,
|
|
_InputIterator __last, _Allocator& __alloc)
|
|
{
|
|
std::__uninitialized_fill_a(__result, __mid, __x, __alloc);
|
|
__try
|
|
{
|
|
return std::__uninitialized_move_a(__first, __last, __mid, __alloc);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __mid, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
// __uninitialized_move_fill
|
|
// Moves [first1, last1) into [first2, first2 + (last1 - first1)), and
|
|
// fills [first2 + (last1 - first1), last2) with x.
|
|
template<typename _InputIterator, typename _ForwardIterator, typename _Tp,
|
|
typename _Allocator>
|
|
inline void
|
|
__uninitialized_move_fill(_InputIterator __first1, _InputIterator __last1,
|
|
_ForwardIterator __first2,
|
|
_ForwardIterator __last2, const _Tp& __x,
|
|
_Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __mid2 = std::__uninitialized_move_a(__first1, __last1,
|
|
__first2,
|
|
__alloc);
|
|
__try
|
|
{
|
|
std::__uninitialized_fill_a(__mid2, __last2, __x, __alloc);
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first2, __mid2, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
// Extensions: __uninitialized_default, __uninitialized_default_n,
|
|
// __uninitialized_default_a, __uninitialized_default_n_a.
|
|
|
|
template<bool _TrivialValueType>
|
|
struct __uninitialized_default_1
|
|
{
|
|
template<typename _ForwardIterator>
|
|
static void
|
|
__uninit_default(_ForwardIterator __first, _ForwardIterator __last)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
for (; __cur != __last; ++__cur)
|
|
std::_Construct(std::__addressof(*__cur));
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct __uninitialized_default_1<true>
|
|
{
|
|
template<typename _ForwardIterator>
|
|
static void
|
|
__uninit_default(_ForwardIterator __first, _ForwardIterator __last)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
|
|
std::fill(__first, __last, _ValueType());
|
|
}
|
|
};
|
|
|
|
template<bool _TrivialValueType>
|
|
struct __uninitialized_default_n_1
|
|
{
|
|
template<typename _ForwardIterator, typename _Size>
|
|
static _ForwardIterator
|
|
__uninit_default_n(_ForwardIterator __first, _Size __n)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
for (; __n > 0; --__n, ++__cur)
|
|
std::_Construct(std::__addressof(*__cur));
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct __uninitialized_default_n_1<true>
|
|
{
|
|
template<typename _ForwardIterator, typename _Size>
|
|
static _ForwardIterator
|
|
__uninit_default_n(_ForwardIterator __first, _Size __n)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
|
|
return std::fill_n(__first, __n, _ValueType());
|
|
}
|
|
};
|
|
|
|
// __uninitialized_default
|
|
// Fills [first, last) with std::distance(first, last) default
|
|
// constructed value_types(s).
|
|
template<typename _ForwardIterator>
|
|
inline void
|
|
__uninitialized_default(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
// trivial types can have deleted assignment
|
|
const bool __assignable = is_copy_assignable<_ValueType>::value;
|
|
|
|
std::__uninitialized_default_1<__is_trivial(_ValueType)
|
|
&& __assignable>::
|
|
__uninit_default(__first, __last);
|
|
}
|
|
|
|
// __uninitialized_default_n
|
|
// Fills [first, first + n) with n default constructed value_type(s).
|
|
template<typename _ForwardIterator, typename _Size>
|
|
inline _ForwardIterator
|
|
__uninitialized_default_n(_ForwardIterator __first, _Size __n)
|
|
{
|
|
typedef typename iterator_traits<_ForwardIterator>::value_type
|
|
_ValueType;
|
|
// trivial types can have deleted assignment
|
|
const bool __assignable = is_copy_assignable<_ValueType>::value;
|
|
|
|
return __uninitialized_default_n_1<__is_trivial(_ValueType)
|
|
&& __assignable>::
|
|
__uninit_default_n(__first, __n);
|
|
}
|
|
|
|
|
|
// __uninitialized_default_a
|
|
// Fills [first, last) with std::distance(first, last) default
|
|
// constructed value_types(s), constructed with the allocator alloc.
|
|
template<typename _ForwardIterator, typename _Allocator>
|
|
void
|
|
__uninitialized_default_a(_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
_Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
|
|
for (; __cur != __last; ++__cur)
|
|
__traits::construct(__alloc, std::__addressof(*__cur));
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _ForwardIterator, typename _Tp>
|
|
inline void
|
|
__uninitialized_default_a(_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
allocator<_Tp>&)
|
|
{ std::__uninitialized_default(__first, __last); }
|
|
|
|
|
|
// __uninitialized_default_n_a
|
|
// Fills [first, first + n) with n default constructed value_types(s),
|
|
// constructed with the allocator alloc.
|
|
template<typename _ForwardIterator, typename _Size, typename _Allocator>
|
|
_ForwardIterator
|
|
__uninitialized_default_n_a(_ForwardIterator __first, _Size __n,
|
|
_Allocator& __alloc)
|
|
{
|
|
_ForwardIterator __cur = __first;
|
|
__try
|
|
{
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
|
|
for (; __n > 0; --__n, ++__cur)
|
|
__traits::construct(__alloc, std::__addressof(*__cur));
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__first, __cur, __alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _ForwardIterator, typename _Size, typename _Tp>
|
|
inline _ForwardIterator
|
|
__uninitialized_default_n_a(_ForwardIterator __first, _Size __n,
|
|
allocator<_Tp>&)
|
|
{ return std::__uninitialized_default_n(__first, __n); }
|
|
|
|
|
|
template<typename _InputIterator, typename _Size,
|
|
typename _ForwardIterator>
|
|
_ForwardIterator
|
|
__uninitialized_copy_n(_InputIterator __first, _Size __n,
|
|
_ForwardIterator __result, input_iterator_tag)
|
|
{
|
|
_ForwardIterator __cur = __result;
|
|
__try
|
|
{
|
|
for (; __n > 0; --__n, ++__first, ++__cur)
|
|
std::_Construct(std::__addressof(*__cur), *__first);
|
|
return __cur;
|
|
}
|
|
__catch(...)
|
|
{
|
|
std::_Destroy(__result, __cur);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
template<typename _RandomAccessIterator, typename _Size,
|
|
typename _ForwardIterator>
|
|
inline _ForwardIterator
|
|
__uninitialized_copy_n(_RandomAccessIterator __first, _Size __n,
|
|
_ForwardIterator __result,
|
|
random_access_iterator_tag)
|
|
{ return std::uninitialized_copy(__first, __first + __n, __result); }
|
|
|
|
/**
|
|
* @brief Copies the range [first,first+n) into result.
|
|
* @param __first An input iterator.
|
|
* @param __n The number of elements to copy.
|
|
* @param __result An output iterator.
|
|
* @return __result + __n
|
|
*
|
|
* Like copy_n(), but does not require an initialized output range.
|
|
*/
|
|
template<typename _InputIterator, typename _Size, typename _ForwardIterator>
|
|
inline _ForwardIterator
|
|
uninitialized_copy_n(_InputIterator __first, _Size __n,
|
|
_ForwardIterator __result)
|
|
{ return std::__uninitialized_copy_n(__first, __n, __result,
|
|
std::__iterator_category(__first)); }
|
|
#endif
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#endif /* _STL_UNINITIALIZED_H */
|