1.0.0[−][src]Trait alloc::fmt::Binary
b
formatting.
The Binary
trait should format its output as a number in binary.
For primitive signed integers (i8
to i128
, and isize
),
negative values are formatted as the two’s complement representation.
The alternate flag, #
, adds a 0b
in front of the output.
For more information on formatters, see the module-level documentation.
Examples
Basic usage with i32
:
let x = 42; // 42 is '101010' in binary assert_eq!(format!("{:b}", x), "101010"); assert_eq!(format!("{:#b}", x), "0b101010"); assert_eq!(format!("{:b}", -16), "11111111111111111111111111110000");
Implementing Binary
on a type:
use std::fmt; struct Length(i32); impl fmt::Binary for Length { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let val = self.0; write!(f, "{:b}", val) // delegate to i32's implementation } } let l = Length(107); println!("l as binary is: {:b}", l);
Required methods
Loading content...Implementations on Foreign Types
impl Binary for NonZeroIsize
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impl Binary for NonZeroU64
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impl Binary for NonZeroU32
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impl Binary for NonZeroU16
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impl Binary for NonZeroI8
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impl Binary for NonZeroI32
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impl<T> Binary for Wrapping<T> where
T: Binary,
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T: Binary,
impl Binary for NonZeroUsize
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impl Binary for NonZeroI64
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impl Binary for NonZeroU128
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impl Binary for NonZeroI128
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impl Binary for NonZeroU8
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impl Binary for NonZeroI16
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Implementors
impl Binary for i8
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impl Binary for i16
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impl Binary for i32
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impl Binary for i64
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impl Binary for i128
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impl Binary for isize
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impl Binary for u8
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impl Binary for u16
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impl Binary for u32
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impl Binary for u64
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impl Binary for u128
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impl Binary for usize
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impl<'_, T> Binary for &'_ T where
T: Binary + ?Sized,
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T: Binary + ?Sized,
impl<'_, T> Binary for &'_ mut T where
T: Binary + ?Sized,
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T: Binary + ?Sized,