Replace elements
<boost/url/params_ref.hpp>
iterator
replace(
    iterator pos,
    param_view const& p);
This function replaces the contents of the element at pos with the specified param.
All iterators that are equal to pos or come after are invalidated.
url u( "?first=John&last=Doe" );
u.params().replace( u.params().begin(), { "title", "Mr" });
assert( u.encoded_query() == "title=Mr&last=Doe" );
Linear in this->url().encoded_query().size().
Strong guarantee. Calls to allocate may throw.
| Name | Description | 
|---|---|
| pos | An iterator to the element. | 
| p | The param to assign. |