#![warn(print_literal)] fn main() { // these should be fine print!("Hello"); println!("Hello"); let world = "world"; println!("Hello {}", world); println!("3 in hex is {:X}", 3); println!("2 + 1 = {:.4}", 3); println!("2 + 1 = {:5.4}", 3); println!("Debug test {:?}", "hello, world"); println!("{0:8} {1:>8}", "hello", "world"); println!("{1:8} {0:>8}", "hello", "world"); println!("{foo:8} {bar:>8}", foo="hello", bar="world"); println!("{bar:8} {foo:>8}", foo="hello", bar="world"); println!("{number:>width$}", number=1, width=6); println!("{number:>0width$}", number=1, width=6); // these should throw warnings println!("{} of {:b} people know binary, the other half doesn't", 1, 2); print!("Hello {}", "world"); println!("Hello {} {}", world, "world"); println!("Hello {}", "world"); println!("10 / 4 is {}", 2.5); println!("2 + 1 = {}", 3); // positional args don't change the fact // that we're using a literal -- this should // throw a warning println!("{0} {1}", "hello", "world"); println!("{1} {0}", "hello", "world"); // named args shouldn't change anything either println!("{foo} {bar}", foo="hello", bar="world"); println!("{bar} {foo}", foo="hello", bar="world"); }