1.0.0[−][src]Struct std::fmt::Arguments

pub struct Arguments<'a> where
    'a: 'a,  { /* fields omitted */ }

This structure represents a safely precompiled version of a format string and its arguments. This cannot be generated at runtime because it cannot safely be done, so no constructors are given and the fields are private to prevent modification.

The format_args! macro will safely create an instance of this structure. The macro validates the format string at compile-time so usage of the write and format functions can be safely performed.

You can use the Arguments<'a> that format_args! returns in Debug and Display contexts as seen below. The example also shows that Debug and Display format to the same thing: the interpolated format string in format_args!.

let debug = format!("{:?}", format_args!("{} foo {:?}", 1, 2));
let display = format!("{}", format_args!("{} foo {:?}", 1, 2));
assert_eq!("1 foo 2", display);
assert_eq!(display, debug);Run

Trait Implementations

`impl<'_> Debug for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Clone for Arguments<'a>`[src]

`fn clone(&self) -> Arguments<'a>`[src]

`fn clone_from(&mut self, source: &Self)`[src]

`impl<'_> Display for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Copy for Arguments<'a>`[src]

Auto Trait Implementations

`impl<'a> !UnwindSafe for Arguments<'a>`

`impl<'a> !RefUnwindSafe for Arguments<'a>`

`impl<'a> Unpin for Arguments<'a>`

`impl<'a> !Send for Arguments<'a>`

`impl<'a> !Sync for Arguments<'a>`

Blanket Implementations

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<T, U> TryFrom for T where U: Into<T>,` [src]

`type Error = Infallible`

The type returned in the event of a conversion error.

`fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>`[src]

`impl<T, U> Into for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T, U> TryInto for T where U: TryFrom<T>,` [src]

`type Error = >::Error`

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, >::Error>`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

ⓘImportant traits for &'_ mut F
Important traits for &'_ mut F
`impl<'_, F> Future for &'_ mut F where F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where I: Iterator + ?Sized, type Item = ::Item;impl<'_, R: Read + ?Sized> Read for &'_ mut Rimpl<'_, W: Write + ?Sized> Write for &'_ mut W`
`fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

ⓘImportant traits for &'_ mut F
Important traits for &'_ mut F
`impl<'_, F> Future for &'_ mut F where F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where I: Iterator + ?Sized, type Item = ::Item;impl<'_, R: Read + ?Sized> Read for &'_ mut Rimpl<'_, W: Write + ?Sized> Write for &'_ mut W`
`fn borrow_mut(&mut self) -> &mut T`[src]

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

The resulting type after obtaining ownership.

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T> ToString for T where T: Display + ?Sized,` [src]

`default fn to_string(&self) -> String`[src]

1.0.0[−][src]Struct std::fmt::Arguments

Trait Implementations

`impl<'_> Debug for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Clone for Arguments<'a>`[src]

`fn clone(&self) -> Arguments<'a>`[src]

`fn clone_from(&mut self, source: &Self)`[src]

`impl<'_> Display for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Copy for Arguments<'a>`[src]

Auto Trait Implementations

`impl<'a> !UnwindSafe for Arguments<'a>`

`impl<'a> !RefUnwindSafe for Arguments<'a>`

`impl<'a> Unpin for Arguments<'a>`

`impl<'a> !Send for Arguments<'a>`

`impl<'a> !Sync for Arguments<'a>`

Blanket Implementations

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src]

`type Error = Infallible`

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

`impl<T, U> Into<U> for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src]

`type Error = <U as TryFrom<T>>::Error`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

Important traits for &'_ mut F

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

Important traits for &'_ mut F

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T> ToString for T where T: Display + ?Sized,` [src]

`default fn to_string(&self) -> String`[src]

1.0.0[−][src]Struct std::fmt::Arguments

Trait Implementations

impl<'_> Debug for Arguments<'_>[src]

fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>[src]

impl<'a> Clone for Arguments<'a>[src]

fn clone(&self) -> Arguments<'a>[src]

fn clone_from(&mut self, source: &Self)[src]

impl<'_> Display for Arguments<'_>[src]

fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>[src]

impl<'a> Copy for Arguments<'a>[src]

Auto Trait Implementations

impl<'a> !UnwindSafe for Arguments<'a>

impl<'a> !RefUnwindSafe for Arguments<'a>

impl<'a> Unpin for Arguments<'a>

impl<'a> !Send for Arguments<'a>

impl<'a> !Sync for Arguments<'a>

Blanket Implementations

impl<T> From<T> for T[src]

fn from(t: T) -> T[src]

impl<T, U> TryFrom<U> for T where U: Into<T>, [src]

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

impl<T, U> Into<U> for T where U: From<T>, [src]

fn into(self) -> U[src]

impl<T, U> TryInto<U> for T where U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

impl<T> Borrow<T> for T where T: ?Sized, [src]

Important traits for &'_ mut F

impl<T> BorrowMut<T> for T where T: ?Sized, [src]

Important traits for &'_ mut F

impl<T> Any for T where T: 'static + ?Sized, [src]

fn type_id(&self) -> TypeId[src]

impl<T> ToOwned for T where T: Clone, [src]

type Owned = T

fn to_owned(&self) -> T[src]

fn clone_into(&self, target: &mut T)[src]

impl<T> ToString for T where T: Display + ?Sized, [src]

default fn to_string(&self) -> String[src]

`impl<'_> Debug for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Clone for Arguments<'a>`[src]

`fn clone(&self) -> Arguments<'a>`[src]

`fn clone_from(&mut self, source: &Self)`[src]

`impl<'_> Display for Arguments<'_>`[src]

`fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`[src]

`impl<'a> Copy for Arguments<'a>`[src]

`impl<'a> !UnwindSafe for Arguments<'a>`

`impl<'a> !RefUnwindSafe for Arguments<'a>`

`impl<'a> Unpin for Arguments<'a>`

`impl<'a> !Send for Arguments<'a>`

`impl<'a> !Sync for Arguments<'a>`

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src]

`type Error = Infallible`

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

`impl<T, U> Into<U> for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src]

`type Error = <U as TryFrom<T>>::Error`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T> ToString for T where T: Display + ?Sized,` [src]

`default fn to_string(&self) -> String`[src]