pub trait OptionCheckedDiv<Rhs = Self, InnerRhs = Rhs> {
    type Output;

    // Required method
    fn opt_checked_div(self, rhs: Rhs) -> Result<Option<Self::Output>, Error>;
}
Expand description

Trait for values and Options checked division.

Implementing this trait leads to the following auto-implementations:

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

Note that since the std library doesn’t define any CheckedDiv trait, users must provide the base implementation for the inner type.

Required Associated Types§

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type Output

The resulting inner type after applying the division.

Required Methods§

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fn opt_checked_div(self, rhs: Rhs) -> Result<Option<Self::Output>, Error>

Computes the checked division.

  • Returns Ok(Some(result)) if result could be computed.
  • Returns Ok(None) if at least one argument is None.
  • Returns Err(Error::Overflow) if an overflow occured.
  • Returns Err(Error::DivisionByZero) if rhs is zero.

Implementations on Foreign Types§

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impl OptionCheckedDiv<u64, u64> for u64

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impl OptionCheckedDiv<u8, u8> for u8

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impl<T, Rhs> OptionCheckedDiv<Rhs, Rhs> for Option<T>where T: OptionOperations + OptionCheckedDiv<Rhs, Rhs>,

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type Output = <T as OptionCheckedDiv<Rhs, Rhs>>::Output

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fn opt_checked_div( self, rhs: Rhs ) -> Result<Option<<Option<T> as OptionCheckedDiv<Rhs, Rhs>>::Output>, Error>

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impl OptionCheckedDiv<u128, u128> for u128

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impl OptionCheckedDiv<u16, u16> for u16

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impl<T, InnerRhs> OptionCheckedDiv<Option<InnerRhs>, InnerRhs> for Option<T>where T: OptionOperations + OptionCheckedDiv<InnerRhs, InnerRhs>,

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type Output = <T as OptionCheckedDiv<InnerRhs, InnerRhs>>::Output

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fn opt_checked_div( self, rhs: Option<InnerRhs> ) -> Result<Option<<Option<T> as OptionCheckedDiv<Option<InnerRhs>, InnerRhs>>::Output>, Error>

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impl<T, InnerRhs> OptionCheckedDiv<&Option<InnerRhs>, InnerRhs> for Option<T>where T: OptionOperations + OptionCheckedDiv<InnerRhs, InnerRhs>, InnerRhs: Copy,

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type Output = <T as OptionCheckedDiv<InnerRhs, InnerRhs>>::Output

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fn opt_checked_div( self, rhs: &Option<InnerRhs> ) -> Result<Option<<Option<T> as OptionCheckedDiv<&Option<InnerRhs>, InnerRhs>>::Output>, Error>

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impl OptionCheckedDiv<u32, u32> for u32

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impl OptionCheckedDiv<u32, u32> for Duration

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impl OptionCheckedDiv<i32, i32> for i32

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impl OptionCheckedDiv<i64, i64> for i64

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impl OptionCheckedDiv<i16, i16> for i16

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impl OptionCheckedDiv<i8, i8> for i8

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impl OptionCheckedDiv<i128, i128> for i128

Implementors§

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impl OptionCheckedDiv<Signed<u32>, Signed<u32>> for Signed<u32>

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impl OptionCheckedDiv<Signed<u64>, Signed<u64>> for Signed<u64>

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impl OptionCheckedDiv<Signed<usize>, Signed<usize>> for Signed<usize>

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impl OptionCheckedDiv<Signed<Buffers>, Signed<Buffers>> for Signed<Buffers>

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impl OptionCheckedDiv<Signed<Bytes>, Signed<Bytes>> for Signed<Bytes>

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impl OptionCheckedDiv<Signed<ClockTime>, Signed<ClockTime>> for Signed<ClockTime>

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impl OptionCheckedDiv<Signed<Default>, Signed<Default>> for Signed<Default>

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impl OptionCheckedDiv<Signed<Other>, Signed<Other>> for Signed<Other>

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impl OptionCheckedDiv<Signed<Percent>, Signed<Percent>> for Signed<Percent>

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impl OptionCheckedDiv<i32, i32> for Signed<u32>

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impl OptionCheckedDiv<i32, i32> for Signed<Percent>

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impl OptionCheckedDiv<i64, i64> for Signed<u64>

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impl OptionCheckedDiv<i64, i64> for Signed<Buffers>

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impl OptionCheckedDiv<i64, i64> for Signed<Bytes>

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impl OptionCheckedDiv<i64, i64> for Signed<ClockTime>

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impl OptionCheckedDiv<i64, i64> for Signed<Default>

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impl OptionCheckedDiv<i64, i64> for Signed<Other>

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impl OptionCheckedDiv<isize, isize> for Signed<usize>

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impl OptionCheckedDiv<u32, u32> for Signed<u32>

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impl OptionCheckedDiv<u32, u32> for Signed<Percent>

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impl OptionCheckedDiv<u32, u32> for Percent

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impl OptionCheckedDiv<u64, u64> for Signed<u64>

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impl OptionCheckedDiv<u64, u64> for Signed<Buffers>

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impl OptionCheckedDiv<u64, u64> for Signed<Bytes>

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impl OptionCheckedDiv<u64, u64> for Signed<ClockTime>

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impl OptionCheckedDiv<u64, u64> for Signed<Default>

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impl OptionCheckedDiv<u64, u64> for Signed<Other>

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impl OptionCheckedDiv<u64, u64> for Buffers

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impl OptionCheckedDiv<u64, u64> for Bytes

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impl OptionCheckedDiv<u64, u64> for ClockTime

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impl OptionCheckedDiv<u64, u64> for Default

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impl OptionCheckedDiv<u64, u64> for Other

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impl OptionCheckedDiv<usize, usize> for Signed<usize>

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impl OptionCheckedDiv<Buffers, Buffers> for Buffers

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type Output = u64

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impl OptionCheckedDiv<Bytes, Bytes> for Bytes

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type Output = u64

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impl OptionCheckedDiv<ClockTime, ClockTime> for ClockTime

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type Output = u64

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impl OptionCheckedDiv<Default, Default> for Default

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type Output = u64

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impl OptionCheckedDiv<Other, Other> for Other

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type Output = u64

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impl OptionCheckedDiv<Percent, Percent> for Percent

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type Output = u32

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impl<T, InnerRhs> OptionCheckedDiv<&Option<InnerRhs>, InnerRhs> for Twhere T: OptionOperations + OptionCheckedDiv<InnerRhs, InnerRhs>, InnerRhs: Copy,

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type Output = <T as OptionCheckedDiv<InnerRhs, InnerRhs>>::Output

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impl<T, InnerRhs> OptionCheckedDiv<Option<InnerRhs>, InnerRhs> for Twhere T: OptionOperations + OptionCheckedDiv<InnerRhs, InnerRhs>,

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type Output = <T as OptionCheckedDiv<InnerRhs, InnerRhs>>::Output