# Trait core::fmt::Display 1.0.0 [−] [src]

    pub trait Display {
        fn fmt(&self, f: &mut Formatter) -> Result;
    }

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`

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

## Implementors

- `impl Display for ParseFloatError`
- `impl<T: Display> Display for Wrapping<T>`
- `impl Display for TryFromIntError`
- `impl Display for ParseIntError`
- `impl Display for BorrowError`
- `impl Display for BorrowMutError`
- `impl Display for CharTryFromError`
- `impl Display for EscapeUnicode`
- `impl Display for EscapeDefault`
- `impl Display for EscapeDebug`
- `impl Display for ParseBoolError`
- `impl Display for Utf8Error`
- `impl Display for f32`
- `impl Display for f64`
- `impl Display for i8`
- `impl Display for u8`
- `impl Display for i16`
- `impl Display for u16`
- `impl Display for i32`
- `impl Display for u32`
- `impl Display for i64`
- `impl Display for u64`
- `impl Display for i128`
- `impl Display for u128`
- `impl Display for isize`
- `impl Display for usize`
- `impl<'a> Display for Arguments<'a>`
- `impl Display for Error`
- `impl<'a, T: ?Sized + Display> Display for &'a T`
- `impl<'a, T: ?Sized + Display> Display for &'a mut T`
- `impl Display for !`
- `impl Display for bool`
- `impl Display for str`
- `impl Display for char`

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