[−][src]Trait az::OverflowingAs

pub trait OverflowingAs {
    fn overflowing_as<Dst>(self) -> (Dst, bool)
    where
        Self: OverflowingCast<Dst>;
}

Used for overflowing casts.

This trait’s method returns a tuple of the value and a bool, indicating whether an overflow has occurred. On overflow, the wrapped value is returned.

This is a convenience trait to enable writing src.overflowing_as::<Dst>(). This would not work with the OverflowingCast::overflowing_cast method because the OverflowingCast trait is generic while the overflowing_cast method is not generic.

This trait’s method is suitable for chaining.

Panics

This trait’s method panics if the value does not fit and cannot be wrapped, for example when trying to cast floating-point ∞ into an integer type.

Examples

use az::OverflowingAs;
assert_eq!(17i32.overflowing_as::<u8>(), (17, false));
assert_eq!((-1).overflowing_as::<u32>(), (u32::max_value(), true));
assert_eq!((17.0 + 256.0).overflowing_as::<u8>(), (17, true));

Required methods

fn overflowing_as<Dst>(self) -> (Dst, bool) where
    Self: OverflowingCast<Dst>, 

Casts the value.

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Implementors

impl<T> OverflowingAs for T[src]

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