39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
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#![warn(print_literal)]
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fn main() {
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// these should be fine
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print!("Hello");
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println!("Hello");
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let world = "world";
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println!("Hello {}", world);
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println!("3 in hex is {:X}", 3);
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// this in theory shouldn't yield a warning,
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// but at present time, it's a known edge case
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// that isn't handled (because we can't expand
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// `println!` and not `env!`)
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println!("foo: {}", env!("BAR"));
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// these should throw warnings
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print!("Hello {}", "world");
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println!("Hello {} {}", world, "world");
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println!("Hello {}", "world");
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println!("10 / 4 is {}", 2.5);
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println!("2 + 1 = {}", 3);
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println!("2 + 1 = {:.4}", 3);
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println!("2 + 1 = {:5.4}", 3);
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println!("Debug test {:?}", "hello, world");
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// positional args don't change the fact
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// that we're using a literal -- this should
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// throw a warning
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println!("{0} {1}", "hello", "world");
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println!("{1} {0}", "hello", "world");
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// named args shouldn't change anything either
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println!("{foo} {bar}", foo="hello", bar="world");
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println!("{bar} {foo}", foo="hello", bar="world");
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}
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