Trait alloc::collections::btree::set_val::IsSetVal

pub trait IsSetVal {
    // Required method
    fn is_set_val() -> bool;
}

A trait to differentiate between BTreeMap and BTreeSet values. Returns true only for type SetValZST, false for all other types (blanket implementation). TypeId requires a 'static lifetime, use of this trait avoids that restriction.

Required Methods

fn is_set_val() -> bool

Implementors

impl IsSetVal for SetValZST

impl<V> IsSetVal for V