fn main() { let foo = 'x'; println!( " Kitchen sink {{ }} - Escaped {{{}}} - Escaped with inner interpol {foo:#?} - Ident with pretty debug format {0:-<5} - Positional with complex fill/alignment ", foo, ); // Unconventional formatting println! ( "Hello, {foo}!"); // Exhausting the supported macros eprintln!("{foo}"); eprint!("{foo}"); println!("{foo}"); print!("{foo}"); format!("{foo}"); format_args!("{foo}"); panic!("{foo}"); todo!("{foo}"); unreachable!("{foo}"); unimplemented!("{foo}"); }