Trait OptionSubAssign 

pub trait OptionSubAssign<Rhs = Self, InnerRhs = Rhs> {
    // Required method
    fn opt_sub_assign(&mut self, rhs: Rhs);
}

Trait for values and Options substraction assignment.

Implementing this trait leads to the following auto-implementations:

• OptionSubAssign<Option<InnerRhs>> for T.
• OptionSubAssign<Rhs> for Option<T>.
• OptionSubAssign<Option<InnerRhs>> for Option<T>.
• … and some variants with references.

This trait is auto-implemented for OptionOperations types implementing Sub<Rhs>.

Required Methods

fn opt_sub_assign(&mut self, rhs: Rhs)

Performs the substraction assignment.

self is unchanged if rhs is None.

Implementations on Foreign Types

impl<T, InnerRhs> OptionSubAssign<&Option<InnerRhs>, InnerRhs> for Option<T>

where T: OptionOperations + OptionSubAssign<InnerRhs>, InnerRhs: Copy,

fn opt_sub_assign(&mut self, rhs: &Option<InnerRhs>)

impl<T, InnerRhs> OptionSubAssign<Option<InnerRhs>, InnerRhs> for Option<T>

where T: OptionOperations + OptionSubAssign<InnerRhs>,

fn opt_sub_assign(&mut self, rhs: Option<InnerRhs>)

impl<T, Rhs> OptionSubAssign<Rhs> for Option<T>

where T: OptionOperations + OptionSubAssign<Rhs>,

fn opt_sub_assign(&mut self, rhs: Rhs)

Implementors

impl<T, InnerRhs> OptionSubAssign<&Option<InnerRhs>, InnerRhs> for T

where T: OptionOperations + OptionSubAssign<InnerRhs>, InnerRhs: Copy,

impl<T, InnerRhs> OptionSubAssign<Option<InnerRhs>, InnerRhs> for T

where T: OptionOperations + OptionSubAssign<InnerRhs>,

impl<T, Rhs> OptionSubAssign<Rhs> for T

where T: OptionOperations + SubAssign<Rhs>,