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 ToLowercase[src]
impl Display for ToUppercase[src]
impl Display for DecodeUtf16Error[src]
impl Display for Utf8Lossy[src]
impl Display for EscapeDebug[src]
impl<T> Display for Wrapping<T> where
T: Display, [src]
T: Display,
impl Display for ParseCharError[src]
impl Display for ParseFloatError[src]
impl Display for BorrowError[src]
impl Display for Infallible[src]
impl<'a, T> Display for Ref<'a, T> where
T: Display + ?Sized, [src]
T: Display + ?Sized,
impl Display for TryFromSliceError[src]
impl Display for BorrowMutError[src]
impl Display for EscapeDefault[src]
impl<'a, T> Display for RefMut<'a, T> where
T: Display + ?Sized, [src]
T: Display + ?Sized,
impl Display for CharTryFromError[src]
impl Display for EscapeUnicode[src]
impl Display for TryFromIntError[src]
impl Display for ParseIntError[src]
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 charimpl Display for i32impl Display for strimpl<'a, T> Display for &'a T where
T: Display + ?Sized,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 u32impl Display for i128impl<'a> Display for Arguments<'a>impl Display for Utf8Errorimpl Display for u16impl Display for !impl Display for f32impl Display for i64impl Display for ParseBoolErrorimpl Display for u8impl Display for isizeimpl Display for u128impl Display for i8impl Display for Errorimpl<'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