Trait az::CheckedCast
source · pub trait CheckedCast<Dst> {
// Required method
fn checked_cast(self) -> Option<Dst>;
}Expand description
Used for checked casts.
This trait’s method returns None if the value does not fit.
It is normally easier to use the CheckedAs trait instead of this trait.
§Examples
use az::CheckedCast;
use core::f32;
let a: Option<u32> = 5i32.checked_cast();
assert_eq!(a, Some(5));
assert_eq!(CheckedCast::<u32>::checked_cast(-5i32), None);
assert_eq!(CheckedCast::<u8>::checked_cast(17.1f32), Some(17));
let b: Option<u8> = f32::NAN.checked_cast();
assert_eq!(b, None);Required Methods§
sourcefn checked_cast(self) -> Option<Dst>
fn checked_cast(self) -> Option<Dst>
Casts the value.