BloombergLP::bdlb::FunctionOutputIterator::operator*

Return an object that can appear on the left‐hand side of an assignment from TYPE. When a value is assigned to the returned value, invoke the functor or function indicated at construction supplying the assigned value as the parameter. This function is non‐`const` in accordance with the input iterator requirements, even though *this is not modified. Note that if FUNCTION is a function pointer type and a valid function pointer was not supplied at construction, then the behavior when assigning to a dereferenced iterator will be undefined.