Set a value
<boost/url/params_ref.hpp>
iterator
set(
    iterator pos,
    core::string_view value);
This function replaces the value of an element at the specified position.
All iterators that are equal to pos or come after are invalidated.
url u( "?id=42&id=69" );
u.params().set( u.params().begin(), "none" );
assert( u.encoded_query() == "id=none&id=69" );
Linear in this->url().encoded_query().size().
Strong guarantee. Calls to allocate may throw.
| Name | Description | 
|---|---|
| pos | An iterator to the element. | 
| value | The value to assign. The empty string still counts as a value. That is, has_valuefor the element is true. |