Return the insertable element count for the specified iterator range.
Declared in <bslstl_iteratorutil.h>
static
bsl::iterator_traits<t_INPUT_ITERATOR>::difference_type
insertDistance(
t_INPUT_ITERATOR const& first,
t_SENTINEL const& last);Return the number of elements in the range [first, last)] if the (template parameter) type t_SENTINEL is convertible to the (template parameter) type t_INPUT_ITERATOR and t_INPUT_ITERATOR has a forward iterator category; otherwise return 0.
the number of elements in [first, last)], or 0 if distance cannot be calculated
| Name | Description |
|---|---|
| first | beginning of the half-open range |
| last | end of the half-open range |