Return the distance from rhs to lhs.
Declared in <bslstl_randomaccessiterator.h>
template<
class T1,
class T2,
class ITER_IMP,
class TAG_TYPE>
std::ptrdiff_t
operator-(
RandomAccessIterator<T1, ITER_IMP, TAG_TYPE> const& lhs,
RandomAccessIterator<T2, ITER_IMP, TAG_TYPE> const& rhs);Return the distance from the specified rhs iterator to the specified lhs iterator. The behavior is undefined unless lhs and rhs are iterators into the same underlying sequence. Note that the result might be negative.
the distance from rhs to lhs
| Name | Description |
|---|---|
| lhs | ending iterator of the distance |
| rhs | starting iterator of the distance |