rust/tests/ui/cast/cast-char.rs

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#![deny(overflowing_literals)]
fn main() {
const XYZ: char = 0x1F888 as char;
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//~^ ERROR only `u8` can be cast into `char`
const XY: char = 129160 as char;
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//~^ ERROR only `u8` can be cast into `char`
const ZYX: char = '\u{01F888}';
println!("{}", XYZ);
}