Closed

Description
Play rust link: http://is.gd/DVjBtk
macro_rules! a {(<$($($d:expr),*$($c:ident),*)*>) => (B<$($d,)*$($c,)*>);}a! (<>);
Play rust link: http://is.gd/DVjBtk
macro_rules! a {(<$($($d:expr),*$($c:ident),*)*>) => (B<$($d,)*$($c,)*>);}a! (<>);