rust/tests/ui/big-literals.rs

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// run-pass
// Catch mistakes in the overflowing literals lint.
#![deny(overflowing_literals)]
pub fn main() {
assert_eq!(0xffffffff, (!0 as u32));
assert_eq!(4294967295, (!0 as u32));
assert_eq!(0xffffffffffffffff, (!0 as u64));
assert_eq!(18446744073709551615, (!0 as u64));
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assert_eq!((-2147483648i32).wrapping_sub(1), 2147483647);
assert_eq!(-3.40282356e+38_f32, f32::MIN);
assert_eq!(3.40282356e+38_f32, f32::MAX);
assert_eq!(-1.7976931348623158e+308_f64, f64::MIN);
assert_eq!(1.7976931348623158e+308_f64, f64::MAX);
}