# 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 TryFromSliceError` | [src]

####

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

###

`impl Display for Utf8Lossy` | [src]

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`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]

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

###

`impl Display for SocketAddr` | [src]

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

###

`impl Display for ParseError` | [src]

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

###

`impl Display for RecvTimeoutError` | [src]

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`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]

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`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]

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

###

`impl Display for i16` | [src]

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

###

`impl Display for i32` | [src]

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

###

`impl Display for i64` | [src]

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

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`impl Display for i8` | [src]

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

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`impl Display for isize` | [src]

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

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`impl Display for !` | [src]

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

###

`impl Display for str` | [src]

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

###

`impl Display for u128` | [src]

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

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`impl Display for u16` | [src]

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

###

`impl Display for u32` | [src]

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

###

`impl Display for u64` | [src]

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

###

`impl Display for u8` | [src]

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`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]

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

###

`impl Display for CannotReallocInPlace` | [src]

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

###

`impl Display for LayoutErr` | [src]

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

###

`impl Display for BorrowError` | [src]

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

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`impl Display for BorrowMutError` | [src]

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

###

`impl Display for CharTryFromError` | [src]

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

###

`impl Display for DecodeUtf16Error` | [src]

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

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`impl Display for EscapeDebug` | [src]

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

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`impl Display for EscapeDefault` | [src]

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

###

`impl Display for EscapeUnicode` | [src]

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

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`impl Display for ParseCharError` | [src]

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

###

`impl Display for ToLowercase` | [src]

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

###

`impl Display for ToUppercase` | [src]

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`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]

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

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`impl Display for IntoStringError` | [src]

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`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]

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

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

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

###

`impl Display for AddrParseError` | [src]

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`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]

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`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]

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

###

`impl Display for ParseIntError` | [src]

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

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`impl Display for TryFromIntError` | [src]

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

###

`impl Display for StripPrefixError` | [src]

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

###

`impl Display for ExitStatus` | [src]

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

###

`impl Display for ParseBoolError` | [src]

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

###

`impl Display for Utf8Error` | [src]

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

###

`impl Display for FromUtf16Error` | [src]

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

###

`impl Display for FromUtf8Error` | [src]

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`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]

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

###

`impl Display for AccessError` | [src]

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

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`impl Display for SystemTimeError` | [src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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`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]

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

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

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

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

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

###

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

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`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]

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

###

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

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

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

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

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

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

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

####

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

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