macro_rules! impl_binop_atan2 {
($fxn:ident, $arg1:expr, $arg2:expr, $($t:ident, $zero_fn:expr, $feat:tt);+ $(;)?) => { ... };
}macro_rules! impl_binop_atan2 {
($fxn:ident, $arg1:expr, $arg2:expr, $($t:ident, $zero_fn:expr, $feat:tt);+ $(;)?) => { ... };
}