Trait NoneSignedBuilder

pub trait NoneSignedBuilder: FormattedValueNoneBuilder {
    type Signed;

    // Required methods
    fn none_signed() -> Self::Signed;
    fn none_signed_for_format(format: Format) -> Self::Signed;
}

Required Associated Types

type Signed

Required Methods

fn none_signed() -> Self::Signed

Returns the None value for Self as a Signed<FullRange> if such a value can be represented.

See details in FormattedValueNoneBuilder::none.

Panics

Panics if Self is GenericFormattedValue in which case, the Format must be known.

fn none_signed_for_format(format: Format) -> Self::Signed

Returns the None value for Self as a Signed<FullRange>, if such a value can be represented.

See details in FormattedValueNoneBuilder::none_for_format.

Panics

Panics if None can’t be represented by Self for format or by the requested GenericFormattedValue variant.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> NoneSignedBuilder for T

where T: UnsignedIntoSigned + FormattedValueNoneBuilder,

type Signed = <T as UnsignedIntoSigned>::Signed