Trait alloc::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);
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, }));
Implementations on Foreign Types
impl Display for DecodeUtf16Error[src]
impl Display for ToUppercase[src]
impl Display for Utf8Lossy[src]
impl Display for ToLowercase[src]
impl Display for ParseFloatError[src]
impl Display for ParseIntError[src]
impl Display for EscapeDebug[src]
impl<'a, T> Display for RefMut<'a, T> where
T: Display + ?Sized, [src]
T: Display + ?Sized,
impl Display for EscapeUnicode[src]
impl Display for CharTryFromError[src]
impl Display for TryFromIntError[src]
impl Display for BorrowMutError[src]
impl Display for Infallible[src]
impl Display for ParseCharError[src]
impl Display for TryFromSliceError[src]
impl Display for BorrowError[src]
impl Display for EscapeDefault[src]
impl<T> Display for Wrapping<T> where
T: Display, [src]
T: Display,
impl<'a, T> Display for Ref<'a, T> where
T: Display + ?Sized, [src]
T: Display + ?Sized,
Implementors
impl Display for AllocErrimpl Display for CannotReallocInPlaceimpl<T: Display + ?Sized> Display for Box<T>impl<T: ?Sized + Display> Display for Arc<T>impl<T: ?Sized + Display> Display for Rc<T>impl Display for i8impl<'a, T> Display for &'a T where
T: Display + ?Sized,impl Display for u128impl Display for i32impl Display for i128impl Display for ParseBoolErrorimpl Display for i16impl Display for Utf8Errorimpl Display for u8impl Display for charimpl<'a> Display for Arguments<'a>impl Display for f64impl Display for u64impl Display for f32impl Display for Errorimpl Display for u16impl Display for boolimpl Display for !impl Display for isizeimpl Display for strimpl Display for usizeimpl<'a, T> Display for &'a mut T where
T: Display + ?Sized,impl Display for i64impl Display for u32impl<'a, B: ?Sized> Display for Cow<'a, B> where
B: Display + ToOwned,
<B as ToOwned>::Owned: Display,impl Display for FromUtf8Errorimpl Display for FromUtf16Errorimpl Display for Stringimpl Display for ParseError