Trait nom::lib::std::fmt::LowerHex1.0.0[−][src]

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

x formatting.

The LowerHex trait should format its output as a number in hexadecimal, with a through f in lower case.

For primitive signed integers (i8 to i128, and isize), negative values are formatted as the two’s complement representation.

The alternate flag, #, adds a 0x 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 '2a' in hex

assert_eq!(format!("{:x}", x), "2a");
assert_eq!(format!("{:#x}", x), "0x2a");

assert_eq!(format!("{:x}", -16), "fffffff0");

Implementing LowerHex on a type:

use std::fmt;

struct Length(i32);

impl fmt::LowerHex for Length {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let val = self.0;

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

let l = Length(9);

assert_eq!(format!("l as hex is: {:x}", l), "l as hex is: 9");

assert_eq!(format!("l as hex is: {:#010x}", l), "l as hex is: 0x00000009");

Required methods

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

Formats the value using the given formatter.

Implementations on Foreign Types

`impl LowerHex for NonZeroI64`[src][−]

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

`impl LowerHex for NonZeroU32`[src][−]

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

`impl LowerHex for NonZeroU64`[src][−]

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

`impl LowerHex for NonZeroI16`[src][−]

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

`impl LowerHex for NonZeroI32`[src][−]

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

`impl LowerHex for NonZeroI128`[src][−]

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

`impl LowerHex for NonZeroU128`[src][−]

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

`impl LowerHex for NonZeroU8`[src][−]

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

`impl LowerHex for NonZeroIsize`[src][−]

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

`impl LowerHex for NonZeroU16`[src][−]

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

`impl<T> LowerHex for Wrapping<T> where T: LowerHex,` [src][−]

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

`impl LowerHex for NonZeroI8`[src][−]

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

`impl LowerHex for NonZeroUsize`[src][−]

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

Implementors

`impl LowerHex for i8`[src][+]

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

`impl LowerHex for i16`[src][+]

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

`impl LowerHex for i32`[src][+]

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

`impl LowerHex for i64`[src][+]

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

`impl LowerHex for i128`[src][+]

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

`impl LowerHex for isize`[src][+]

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

`impl LowerHex for u8`[src][+]

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

`impl LowerHex for u16`[src][+]

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

`impl LowerHex for u32`[src][+]

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

`impl LowerHex for u64`[src][+]

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

`impl LowerHex for u128`[src][+]

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

`impl LowerHex for usize`[src][+]

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

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

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

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

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

`impl LowerHex for Sides`

`impl LowerHex for ColorMask`

`impl LowerHex for Mirror`

`impl LowerHex for Access`

`impl LowerHex for Bind`

`impl LowerHex for Usage`

`impl LowerHex for DepthStencilFlags`

`impl LowerHex for ModifierKey`

`impl LowerHex for AtFlags`

`impl LowerHex for OFlag`

`impl LowerHex for SealFlag`

`impl LowerHex for FdFlag`

`impl LowerHex for SpliceFFlags`

`impl LowerHex for FallocateFlags`

`impl LowerHex for ModuleInitFlags`

`impl LowerHex for DeleteModuleFlags`

`impl LowerHex for MsFlags`

`impl LowerHex for MntFlags`

`impl LowerHex for MQ_OFlag`

`impl LowerHex for FdFlag`

`impl LowerHex for InterfaceFlags`

`impl LowerHex for PollFlags`

`impl LowerHex for CloneFlags`

`impl LowerHex for EpollFlags`

`impl LowerHex for EpollCreateFlags`

`impl LowerHex for EfdFlags`

`impl LowerHex for MemFdCreateFlag`

`impl LowerHex for ProtFlags`

`impl LowerHex for MapFlags`

`impl LowerHex for MRemapFlags`

`impl LowerHex for MsFlags`

`impl LowerHex for MlockAllFlags`

`impl LowerHex for Persona`

`impl LowerHex for Options`

`impl LowerHex for QuotaValidFlags`

`impl LowerHex for SaFlags`

`impl LowerHex for SfdFlags`

`impl LowerHex for SockFlag`

`impl LowerHex for MsgFlags`

`impl LowerHex for SFlag`

`impl LowerHex for Mode`

`impl LowerHex for FsFlags`

`impl LowerHex for InputFlags`

`impl LowerHex for OutputFlags`

`impl LowerHex for ControlFlags`

`impl LowerHex for LocalFlags`

`impl LowerHex for WaitPidFlag`

`impl LowerHex for AddWatchFlags`

`impl LowerHex for InitFlags`

`impl LowerHex for TimerFlags`

`impl LowerHex for TimerSetTimeFlags`

`impl LowerHex for AccessFlags`

`impl<T: LowerHex + Clone + Integer> LowerHex for Ratio<T>`

`impl LowerHex for Transformations`

`impl LowerHex for DndAction`

`impl LowerHex for Resize`

`impl LowerHex for Transient`

`impl LowerHex for Capability`

`impl LowerHex for Mode`

`impl LowerHex for ContentHint`

`impl LowerHex for Anchor`

`impl LowerHex for Gravity`

`impl LowerHex for ConstraintAdjustment`

`impl LowerHex for Anchor`

`impl LowerHex for Flags`

`impl LowerHex for Kind`

`impl LowerHex for ConstraintAdjustment`

`impl LowerHex for ModifiersState`