# Trait collections::fmt::Display [−] [src]

    pub trait Display {
        fn fmt(&self, &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:

fn main() { 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); }

    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, &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

## Implementors

- `impl<T> Display for Box<T> where T: Display + ?Sized`
- `impl<'a, B: ?Sized> Display for Cow<'a, B> where B: Display + ToOwned, B::Owned: Display`
- `impl Display for Error`
- `impl<'a> Display for Arguments<'a>`
- `impl Display for Utf8Error`
- `impl Display for ParseBoolError`
- `impl Display for FromUtf8Error`
- `impl Display for FromUtf16Error`
- `impl Display for String`
- `impl Display for ParseError`

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