params_ref::set (1 of 2 overloads)

Set a value.

iterator
set(
    iterator pos,
    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.

An iterator to the element.

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 will be true.