params_ref::insert (3 of 3 overloads)

Insert elements.

template<
    class FwdIt>
iterator
insert(
    iterator before,
    FwdIt first,
    FwdIt last);

This function inserts a range of params before the specified position.

All iterators that are equal to before or come after are invalidated.

The strings referenced by the inputs must not come from the underlying url, or else the behavior is undefined.

std::is_convertible< std::iterator_traits< FwdIt >::reference_type, param_view >::value == true

Linear in this->url().encoded_query().size().

Strong guarantee. Calls to allocate may throw.

An iterator to the first element inserted, or before if first == last.

Name	Description
`before`	An iterator before which the element is inserted. This may be equal to `end()`.
`first`, `last`	The range of params to insert.