1.0.0[][src]Trait nom::lib::std::fmt::Binary

pub trait Binary {
    pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;
}

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;

        fmt::Binary::fmt(&val, f) // delegate to i32's implementation
    }
}

let l = Length(107);

assert_eq!(format!("l as binary is: {:b}", l), "l as binary is: 1101011");

assert_eq!(
    format!("l as binary is: {:#032b}", l),
    "l as binary is: 0b000000000000000000000001101011"
);

Required methods

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[src]

Formats the value using the given formatter.

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Implementations on Foreign Types

impl Binary for i128[src]

impl Binary for NonZeroI16[src]

impl Binary for u8[src]

impl Binary for NonZeroI64[src]

impl Binary for isize[src]

impl Binary for u64[src]

impl Binary for usize[src]

impl Binary for i16[src]

impl<'_, T> Binary for &'_ T where
    T: Binary + ?Sized
[src]

impl<'_, T> Binary for &'_ mut T where
    T: Binary + ?Sized
[src]

impl Binary for i32[src]

impl Binary for NonZeroU64[src]

impl Binary for NonZeroUsize[src]

impl Binary for NonZeroIsize[src]

impl Binary for NonZeroU32[src]

impl Binary for u16[src]

impl Binary for NonZeroU8[src]

impl Binary for i64[src]

impl Binary for NonZeroU128[src]

impl Binary for u128[src]

impl Binary for i8[src]

impl Binary for NonZeroU16[src]

impl Binary for NonZeroI128[src]

impl Binary for NonZeroI32[src]

impl<T> Binary for Wrapping<T> where
    T: Binary
[src]

impl Binary for u32[src]

impl Binary for NonZeroI8[src]

impl<'_, T> Binary for Domain<'_, T> where
    T: BitStore
[src]

impl<R> Binary for BitSel<R> where
    R: BitRegister
[src]

impl<O, V> Binary for BitArray<O, V> where
    O: BitOrder,
    V: BitView
[src]

impl<R> Binary for BitMask<R> where
    R: BitRegister
[src]

impl<O, T> Binary for BitBox<O, T> where
    O: BitOrder,
    T: BitStore
[src]

impl<O, T> Binary for BitSlice<O, T> where
    O: BitOrder,
    T: BitStore
[src]

Render the contents of a BitSlice in a numeric format.

These implementations render the bits of memory contained in a BitSlice as one of the three numeric bases that the Rust format system supports:

  • Binary renders each bit individually as 0 or 1,
  • Octal renders clusters of three bits as the numbers 0 through 7,
  • and UpperHex and LowerHex render clusters of four bits as the numbers 0 through 9 and A through F.

The formatters produce a “word” for each element T of memory. The chunked formats (octal and hexadecimal) operate somewhat peculiarly: they show the semantic value of the memory, as interpreted by the ordering parameter’s implementation rather than the raw value of memory you might observe with a debugger. In order to ease the process of expanding numbers back into bits, each digit is grouped to the right edge of the memory element. So, for example, the byte 0xFF would be rendered in as 0o377 rather than 0o773.

Rendered words are chunked by memory elements, rather than by as clean as possible a number of digits, in order to aid visualization of the slice’s place in memory.

impl<O, T> Binary for BitVec<O, T> where
    O: BitOrder,
    T: BitStore
[src]

impl<R> Binary for BitIdx<R> where
    R: BitRegister
[src]

impl<T> Binary for FmtDisplay<T> where
    T: Display + Binary

impl<T> Binary for FmtBinary<T> where
    T: Binary

impl<T> Binary for FmtLowerExp<T> where
    T: Binary + LowerExp

impl<T> Binary for FmtOctal<T> where
    T: Octal + Binary

impl<T> Binary for FmtPointer<T> where
    T: Binary + Pointer

impl<T> Binary for FmtUpperHex<T> where
    T: Binary + UpperHex

impl<T> Binary for FmtLowerHex<T> where
    T: Binary + LowerHex

impl<T> Binary for FmtUpperExp<T> where
    T: Binary + UpperExp

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Implementors

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