template<class ForwardIterator, class Size, class Type>
void unchecked_uninitialized_fill_n(
ForwardIterator _First,
Size _Count,
const Type& _Val
);
template<class ForwardIterator, class Size, class Type, class Allocator>
void unchecked_uninitialized_fill_n(
ForwardIterator _First,
Size _Count,
const Type& _Val,
Allocator& _Al
);