Trait std::fmt::Display 1.0.0
[−]
[src]
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
Implementations on Foreign Types
impl Display for Utf8Lossy[src]
impl Display for TryFromSliceError[src]
Implementors
impl Display for ToLowercaseimpl Display for ToUppercaseimpl Display for DecodeUtf16Errorimpl Display for AllocErrimpl<T> Display for Box<T> where
T: Display + ?Sized,impl Display for ParseErrorimpl Display for Stringimpl<T> Display for Rc<T> where
T: Display + ?Sized,impl Display for FromUtf16Errorimpl Display for FromUtf8Errorimpl Display for CannotReallocInPlaceimpl<T> Display for Arc<T> where
T: Display + ?Sized,impl<'a, B> Display for Cow<'a, B> where
B: Display + ToOwned + ?Sized,
<B as ToOwned>::Owned: Display,impl Display for charimpl Display for i32impl Display for EscapeDebugimpl Display for strimpl<'a, T> Display for &'a T where
T: Display + ?Sized,impl<T> Display for Wrapping<T> where
T: Display,impl Display for usizeimpl Display for f64impl Display for u64impl Display for boolimpl<'a, T> Display for &'a mut T where
T: Display + ?Sized,impl Display for i16impl Display for ParseCharErrorimpl Display for u32impl Display for ParseFloatErrorimpl Display for i128impl<'a> Display for Arguments<'a>impl Display for Utf8Errorimpl Display for BorrowErrorimpl Display for Infallibleimpl Display for u16impl Display for !impl Display for f32impl Display for i64impl<'a, T> Display for Ref<'a, T> where
T: Display + ?Sized,impl Display for ParseBoolErrorimpl Display for u8impl Display for BorrowMutErrorimpl Display for EscapeDefaultimpl Display for isizeimpl<'a, T> Display for RefMut<'a, T> where
T: Display + ?Sized,impl Display for CharTryFromErrorimpl Display for EscapeUnicodeimpl Display for TryFromIntErrorimpl Display for u128impl Display for ParseIntErrorimpl Display for i8impl Display for std::fmt::Errorimpl Display for AccessErrorimpl Display for VarErrorimpl Display for JoinPathsErrorimpl Display for NulErrorimpl Display for FromBytesWithNulErrorimpl Display for IntoStringErrorimpl<W> Display for IntoInnerError<W>impl Display for std::io::Errorimpl Display for CharsErrorimpl Display for IpAddrimpl Display for Ipv4Addrimpl Display for Ipv6Addrimpl Display for SocketAddrimpl Display for SocketAddrV4impl Display for SocketAddrV6impl Display for AddrParseErrorimpl<'a> Display for Display<'a>impl Display for StripPrefixErrorimpl Display for ExitStatusimpl<T> Display for SendError<T>impl<T> Display for TrySendError<T>impl Display for RecvErrorimpl Display for TryRecvErrorimpl Display for RecvTimeoutErrorimpl<'a, T: ?Sized + Display> Display for MutexGuard<'a, T>impl<'a, T: ?Sized + Display> Display for RwLockReadGuard<'a, T>impl<'a, T: ?Sized + Display> Display for RwLockWriteGuard<'a, T>impl Display for SystemTimeErrorimpl<T> Display for PoisonError<T>impl<T> Display for TryLockError<T>