#![warn(clippy::unit_arg)] #![allow(unused_must_use, unused_variables)] #![allow(clippy::no_effect, clippy::uninlined_format_args)] use std::fmt::Debug; fn foo<T: Debug>(t: T) { println!("{:?}", t); } fn foo3<T1: Debug, T2: Debug, T3: Debug>(t1: T1, t2: T2, t3: T3) { println!("{:?}, {:?}, {:?}", t1, t2, t3); } fn bad() { foo(()); foo3((), 2, 2); foo(0); taking_two_units((), ()); foo(0); foo(1); taking_three_units((), (), ()); } fn taking_two_units(a: (), b: ()) {} fn taking_three_units(a: (), b: (), c: ()) {} fn main() { bad(); }