# 1.0.0[−][src]Trait std::fmt::Display

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

Format trait for an empty format, `{}`.

`Display` is similar to `Debug`, but `Display` is for user-facing output, and so cannot be derived.

For more information on formatters, see the module-level documentation.

# Examples

Implementing `Display` on a type:

    use std::fmt;

    struct Point {
        x: i32,
        y: i32,
    }

    impl fmt::Display for Point {
        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
            write!(f, "({}, {})", self.x, self.y)
        }
    }

    let origin = Point { x: 0, y: 0 };

    println!("The origin is: {}", origin);Run

## Required methods

### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

# Examples

    use std::fmt;

    struct Position {
        longitude: f32,
        latitude: f32,
    }

    impl fmt::Display for Position {
        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
            write!(f, "({}, {})", self.longitude, self.latitude)
        }
    }

    assert_eq!("(1.987, 2.983)".to_owned(),
               format!("{}", Position { longitude: 1.987, latitude: 2.983, }));Run

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## Implementations on Foreign Types

### `impl Display for Utf8Lossy`[src]

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

### `impl Display for TryFromSliceError`[src]

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

### `impl<'a> Display for Demangle<'a>`

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

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## Implementors

### `impl Display for VarError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for IpAddr`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result`[src]

### `impl Display for SocketAddr`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for ParseError`[src]

#### `fn fmt(&self, &mut Formatter) -> Result<(), Error>`[src]

### `impl Display for RecvTimeoutError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for TryRecvError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for bool`[src]

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

### `impl Display for char`[src]

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

### `impl Display for f32`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

### `impl Display for f64`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

### `impl Display for i128`[src]

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

### `impl Display for i16`[src]

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

### `impl Display for i32`[src]

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

### `impl Display for i64`[src]

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

### `impl Display for i8`[src]

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

### `impl Display for isize`[src]

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

### `impl Display for !`[src]

#### `fn fmt(&self, &mut Formatter) -> Result<(), Error>`[src]

### `impl Display for str`[src]

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

### `impl Display for u128`[src]

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

### `impl Display for u16`[src]

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

### `impl Display for u32`[src]

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

### `impl Display for u64`[src]

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

### `impl Display for u8`[src]

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

### `impl Display for usize`[src]

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

### `impl Display for AllocErr`[src]

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

### `impl Display for CannotReallocInPlace`[src]

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

### `impl Display for LayoutErr`[src]

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

### `impl Display for BorrowError`[src]

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

### `impl Display for BorrowMutError`[src]

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

### `impl Display for CharTryFromError`[src]

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

### `impl Display for DecodeUtf16Error`[src]

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

### `impl Display for EscapeDebug`[src]

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

### `impl Display for EscapeDefault`[src]

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

### `impl Display for EscapeUnicode`[src]

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

### `impl Display for ParseCharError`[src]

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

### `impl Display for ToLowercase`[src]

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

### `impl Display for ToUppercase`[src]

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

### `impl Display for JoinPathsError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for FromBytesWithNulError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for IntoStringError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for NulError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for std::fmt::Error`[src]

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

### `impl Display for std::io::Error`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result`[src]

### `impl Display for AddrParseError`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result`[src]

### `impl Display for Ipv4Addr`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result`[src]

### `impl Display for Ipv6Addr`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result`[src]

### `impl Display for SocketAddrV4`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for SocketAddrV6`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for NonZeroU128`[src]

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

### `impl Display for NonZeroU16`[src]

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

### `impl Display for NonZeroU32`[src]

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

### `impl Display for NonZeroU64`[src]

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

### `impl Display for NonZeroU8`[src]

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

### `impl Display for NonZeroUsize`[src]

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

### `impl Display for ParseFloatError`[src]

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

### `impl Display for ParseIntError`[src]

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

### `impl Display for TryFromIntError`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

### `impl Display for StripPrefixError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for ExitStatus`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for ParseBoolError`[src]

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

### `impl Display for Utf8Error`[src]

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

### `impl Display for FromUtf16Error`[src]

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

### `impl Display for FromUtf8Error`[src]

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

### `impl Display for String`[src]

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

### `impl Display for RecvError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for AccessError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl Display for SystemTimeError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<'_> Display for Arguments<'_>`[src]

#### `fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

### `impl<'_> Display for Location<'_>`[src]

#### `fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error>`[src]

### `impl<'_> Display for PanicInfo<'_>`[src]

#### `fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error>`[src]

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

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

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

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

### `impl<'_, T> Display for Ref<'_, T> where
T: Display + ?Sized,` [src]

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

### `impl<'_, T> Display for RefMut<'_, T> where
T: Display + ?Sized,` [src]

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

### `impl<'a> Display for Display<'a>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<'a, B> Display for Cow<'a, B> where
B: Display + ToOwned + ?Sized,
<B as ToOwned>::Owned: Display,` [src]

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

### `impl<'a, T: ?Sized + Display> Display for MutexGuard<'a, T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<'a, T: ?Sized + Display> Display for RwLockReadGuard<'a, T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<'a, T: ?Sized + Display> Display for RwLockWriteGuard<'a, T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<P> Display for Pin<P> where
P: Display,` [src]

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

### `impl<T> Display for TryLockError<T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<T> Display for TrySendError<T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<T> Display for Box<T> where
T: Display + ?Sized,` [src]

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

### `impl<T> Display for Wrapping<T> where
T: Display,` [src]

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

### `impl<T> Display for Rc<T> where
T: Display + ?Sized,` [src]

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

### `impl<T> Display for SendError<T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<T> Display for Arc<T> where
T: Display + ?Sized,` [src]

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

### `impl<T> Display for PoisonError<T>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

### `impl<W> Display for IntoInnerError<W>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

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