- _ForwardIter __result) {
- return __uninitialized_copy_n(__first, __count, __result,
- __iterator_category(__first));
+ _ForwardIter __result)
+ { return __gnu_cxx::__uninitialized_copy_n(__first, __count, __result,
+ __iterator_category(__first)); }
+
+
+ // An alternative version of uninitialized_copy_n that constructs
+ // and destroys objects with a user-provided allocator.
+ template<typename _InputIter, typename _Size, typename _ForwardIter,
+ typename _Allocator>
+ pair<_InputIter, _ForwardIter>
+ __uninitialized_copy_n_a(_InputIter __first, _Size __count,
+ _ForwardIter __result,
+ _Allocator __alloc)
+ {
+ _ForwardIter __cur = __result;
+ __try
+ {
+ for (; __count > 0 ; --__count, ++__first, ++__cur)
+ __alloc.construct(&*__cur, *__first);
+ return pair<_InputIter, _ForwardIter>(__first, __cur);
+ }
+ __catch(...)
+ {
+ std::_Destroy(__result, __cur, __alloc);
+ __throw_exception_again;
+ }