pub trait AsI256 {
// Required method
fn as_i256(self) -> I256;
}Expand description
This trait defines as conversions (casting) from primitive types to
I256.
§Examples
Casting a floating point value to an integer is a saturating operation,
with NaN converting to 0. So:
assert_eq!((-1i32).as_i256(), -I256::ONE);
assert_eq!(u32::MAX.as_i256(), 0xffffffff);
assert_eq!(-13.37f64.as_i256(), -13);
assert_eq!(42.0f64.as_i256(), 42);
assert_eq!(
f32::MAX.as_i256(),
0xffffff00000000000000000000000000u128.as_i256(),
);
assert_eq!(
f32::MIN.as_i256(),
-0xffffff00000000000000000000000000u128.as_i256(),
);
assert_eq!(f64::NEG_INFINITY.as_i256(), I256::MIN);
assert_eq!((-2.0f64.powi(256)).as_i256(), I256::MIN);
assert_eq!(f64::INFINITY.as_i256(), I256::MAX);
assert_eq!(2.0f64.powi(256).as_i256(), I256::MAX);
assert_eq!(f64::NAN.as_i256(), 0);