Macro defaultbtreemap 

macro_rules! defaultbtreemap {
    ( ) => { ... };
    ( $( ($key:expr, $val:expr) ),* $(,)? ) => { ... };
    ( $( $key:expr ),* $(,)? ) => { ... };
}

A quick way to instantiate a BTreeMap.

A trailing comma is allowed but not required here

Example

use defaultdict::DefaultBTreeMap;


let default_map: DefaultBTreeMap<i8, i8> = defaultdict::defaultbtreemap!(1,2,3,);

let custom_map: DefaultBTreeMap<i8, i8> = defaultdict::defaultbtreemap!(
    (1, 1),
    (2, 2),
);