boost::urls::params_ref::set Set a value Synopsis Declared in header <boost/url/params_ref.hpp> iterator set( iterator pos, core::string_view value); Description 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. Return Value An iterator to the element. Parameters Name Description pos An iterator to the element. value The value to assign. The empty string still counts as a value. That is, has_value for the element is true.