Return the distance from the underlying iterator of b to that of a.
Declared in <bdlb_transformiterator.h>
template<
class FUNCTOR,
class ITERATOR>
bdlb::TransformIterator<FUNCTOR, ITERATOR>::difference_type
operator-(
TransformIterator<FUNCTOR, ITERATOR> const& a,
TransformIterator<FUNCTOR, ITERATOR> const& b);Return the result of subtracting the underlying iterator of the specified b object from the underlying iterator of the specified a object. The behavior is undefined if this subtraction is undefined.
the distance from the underlying iterator of b to that of a
| Name | Description |
|---|---|
| a | left-hand operand |
| b | right-hand operand |