Trait gstreamer::prelude::OptionSaturatingSub
pub trait OptionSaturatingSub<Rhs = Self, InnerRhs = Rhs> {
type Output;
// Required method
fn opt_saturating_sub(self, rhs: Rhs) -> Option<Self::Output>;
}Expand description
Trait for values and Options saturating substraction.
Implementing this trait leads to the following auto-implementations:
OptionSaturatingSub<Option<InnerRhs>>forT.OptionSaturatingSub<Rhs>forOption<T>.OptionSaturatingSub<Option<InnerRhs>>forOption<T>.- … and some variants with references.
Note that since the std library doesn’t define any
SaturatingSub trait,
users must provide the base implementation for the inner type.
Required Associated Types§
type Output
type Output
The resulting inner type after applying the substraction.
Required Methods§
fn opt_saturating_sub(self, rhs: Rhs) -> Option<Self::Output>
fn opt_saturating_sub(self, rhs: Rhs) -> Option<Self::Output>
Computes the substraction saturating at the numeric bounds instead of overflowing.
Returns None if at least one argument is None.