stl_uninitialized.h [plain text]
#ifndef _CPP_BITS_STL_UNINITIALIZED_H
#define _CPP_BITS_STL_UNINITIALIZED_H 1
#include <cstring>
namespace std
{
template<typename _InputIter, typename _ForwardIter>
inline _ForwardIter
__uninitialized_copy_aux(_InputIter __first, _InputIter __last,
_ForwardIter __result,
__true_type)
{ return copy(__first, __last, __result); }
template<typename _InputIter, typename _ForwardIter>
_ForwardIter
__uninitialized_copy_aux(_InputIter __first, _InputIter __last,
_ForwardIter __result,
__false_type)
{
_ForwardIter __cur = __result;
try {
for ( ; __first != __last; ++__first, ++__cur)
_Construct(&*__cur, *__first);
return __cur;
}
catch(...)
{
_Destroy(__result, __cur);
__throw_exception_again;
}
}
template<typename _InputIter, typename _ForwardIter>
inline _ForwardIter
uninitialized_copy(_InputIter __first, _InputIter __last, _ForwardIter __result)
{
typedef typename iterator_traits<_InputIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
return __uninitialized_copy_aux(__first, __last, __result, _Is_POD());
}
inline char*
uninitialized_copy(const char* __first, const char* __last, char* __result)
{
memmove(__result, __first, __last - __first);
return __result + (__last - __first);
}
inline wchar_t*
uninitialized_copy(const wchar_t* __first, const wchar_t* __last,
wchar_t* __result)
{
memmove(__result, __first, sizeof(wchar_t) * (__last - __first));
return __result + (__last - __first);
}
template<typename _ForwardIter, typename _Tp>
inline void
__uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
const _Tp& __x, __true_type)
{ fill(__first, __last, __x); }
template<typename _ForwardIter, typename _Tp>
void
__uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
const _Tp& __x, __false_type)
{
_ForwardIter __cur = __first;
try {
for ( ; __cur != __last; ++__cur)
_Construct(&*__cur, __x);
}
catch(...)
{
_Destroy(__first, __cur);
__throw_exception_again;
}
}
template<typename _ForwardIter, typename _Tp>
inline void
uninitialized_fill(_ForwardIter __first, _ForwardIter __last, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
__uninitialized_fill_aux(__first, __last, __x, _Is_POD());
}
template<typename _ForwardIter, typename _Size, typename _Tp>
inline _ForwardIter
__uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
const _Tp& __x, __true_type)
{
return fill_n(__first, __n, __x);
}
template<typename _ForwardIter, typename _Size, typename _Tp>
_ForwardIter
__uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
const _Tp& __x, __false_type)
{
_ForwardIter __cur = __first;
try {
for ( ; __n > 0; --__n, ++__cur)
_Construct(&*__cur, __x);
return __cur;
}
catch(...)
{
_Destroy(__first, __cur);
__throw_exception_again;
}
}
template<typename _ForwardIter, typename _Size, typename _Tp>
inline _ForwardIter
uninitialized_fill_n(_ForwardIter __first, _Size __n, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
return __uninitialized_fill_n_aux(__first, __n, __x, _Is_POD());
}
template<typename _InputIter1, typename _InputIter2, typename _ForwardIter>
inline _ForwardIter
__uninitialized_copy_copy(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2, _InputIter2 __last2,
_ForwardIter __result)
{
_ForwardIter __mid = uninitialized_copy(__first1, __last1, __result);
try {
return uninitialized_copy(__first2, __last2, __mid);
}
catch(...)
{
_Destroy(__result, __mid);
__throw_exception_again;
}
}
template<typename _ForwardIter, typename _Tp, typename _InputIter>
inline _ForwardIter
__uninitialized_fill_copy(_ForwardIter __result, _ForwardIter __mid,
const _Tp& __x,
_InputIter __first, _InputIter __last)
{
uninitialized_fill(__result, __mid, __x);
try {
return uninitialized_copy(__first, __last, __mid);
}
catch(...)
{
_Destroy(__result, __mid);
__throw_exception_again;
}
}
template<typename _InputIter, typename _ForwardIter, typename _Tp>
inline void
__uninitialized_copy_fill(_InputIter __first1, _InputIter __last1,
_ForwardIter __first2, _ForwardIter __last2,
const _Tp& __x)
{
_ForwardIter __mid2 = uninitialized_copy(__first1, __last1, __first2);
try {
uninitialized_fill(__mid2, __last2, __x);
}
catch(...)
{
_Destroy(__first2, __mid2);
__throw_exception_again;
}
}
}
#endif