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

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

Implementations on Foreign Types

impl Display for Utf8Lossy
[src]

impl Display for TryFromSliceError
[src]

Implementors

impl Display for VarError
[src]

impl Display for IpAddr
[src]

impl Display for SocketAddr
[src]

impl Display for ParseError
[src]

impl Display for RecvTimeoutError
[src]

impl Display for TryRecvError
[src]

impl Display for bool
[src]

impl Display for char
[src]

impl Display for f32
[src]

impl Display for f64
[src]

impl Display for i128
[src]

impl Display for i16
[src]

impl Display for i32
[src]

impl Display for i64
[src]

impl Display for i8
[src]

impl Display for isize
[src]

impl Display for !
[src]

impl Display for str
[src]

impl Display for u128
[src]

impl Display for u16
[src]

impl Display for u32
[src]

impl Display for u64
[src]

impl Display for u8
[src]

impl Display for usize
[src]

impl Display for AllocErr
[src]

impl Display for CannotReallocInPlace
[src]

impl Display for LayoutErr
[src]

impl Display for BorrowError
[src]

impl Display for BorrowMutError
[src]

impl Display for CharTryFromError
[src]

impl Display for DecodeUtf16Error
[src]

impl Display for EscapeDebug
[src]

impl Display for EscapeDefault
[src]

impl Display for EscapeUnicode
[src]

impl Display for ParseCharError
[src]

impl Display for ToLowercase
[src]

impl Display for ToUppercase
[src]

impl Display for JoinPathsError
[src]

impl Display for FromBytesWithNulError
[src]

impl Display for IntoStringError
[src]

impl Display for NulError
[src]

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

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

impl Display for AddrParseError
[src]

impl Display for Ipv4Addr
[src]

impl Display for Ipv6Addr
[src]

impl Display for SocketAddrV4
[src]

impl Display for SocketAddrV6
[src]

impl Display for NonZeroU128
[src]

impl Display for NonZeroU16
[src]

impl Display for NonZeroU32
[src]

impl Display for NonZeroU64
[src]

impl Display for NonZeroU8
[src]

impl Display for NonZeroUsize
[src]

impl Display for ParseFloatError
[src]

impl Display for ParseIntError
[src]

impl Display for TryFromIntError
[src]

impl Display for StripPrefixError
[src]

impl Display for ExitStatus
[src]

impl Display for ParseBoolError
[src]

impl Display for Utf8Error
[src]

impl Display for FromUtf16Error
[src]

impl Display for FromUtf8Error
[src]

impl Display for String
[src]

impl Display for RecvError
[src]

impl Display for AccessError
[src]

impl Display for SystemTimeError
[src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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