Assign to this object the value resulting from first clearing this vector and then inserting (in order) each value_type object in the range starting at the specified first element, and ending immediately before the specified last element. If an exception is thrown, *this is left in a valid but unspecified state. Throw std::length_error if distance(first,last) > max_size(). The (template parameter) type INPUT_ITER shall meet the requirements of an input iterator defined in the C++11 standard [24.2.3] providing access to values of a type convertible to value_type, and value_type must be emplace-constructible from *i into this vector, where i is a dereferenceable iterator in the range [first .. last)] (see {Requirements on VALUE_TYPE}). The behavior is undefined unless first and last refer to a range of valid values where first is at a position at or before last.
Declared in <bslstl_vector.h>
template<class INPUT_ITER>
void
assign(
INPUT_ITER first,
INPUT_ITER last);