[#8F1511298552609A31662B813A78437A70ACD6B0]

Function params_ref:: unset

Remove the value on an element

Synopsis

            iterator
unset(iterator pos) noexcept;
        

Description

This function removes the value of an element at the specified position. After the call returns, `has_value` for the element is false.

All iterators that are equal to `pos` or come after are invalidated.

Example

url u( "?first=John&last=Doe" ); u.params().unset( u.params().begin() ); assert( u.encoded_query() == "first&last=Doe" );

Complexity

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

Exception Safety

Throws nothing.