Struct std::ffi::VaList[−][src]

#[repr(transparent)]
pub struct VaList<'a, 'f> where
    'f: 'a,  { /* fields omitted */ }
🔬 This is a nightly-only experimental API. (c_variadic #44930)

the c_variadic feature has not been properly tested on all supported platforms

A wrapper for a va_list

Methods from Deref<Target = VaListImpl<'f>>

pub fn as_va_list(&'a mut self) -> VaList<'a, 'f>[src]

🔬 This is a nightly-only experimental API. (c_variadic #44930)

the c_variadic feature has not been properly tested on all supported platforms

Convert a VaListImpl into a VaList that is binary-compatible with C’s va_list.

pub unsafe fn arg<T>(&mut self) -> T where
    T: VaArgSafe, [src]

🔬 This is a nightly-only experimental API. (c_variadic #44930)

the c_variadic feature has not been properly tested on all supported platforms

Advance to the next arg.

pub unsafe fn with_copy<F, R>(&self, f: F) -> R where
    F: for<'copy> FnOnce(VaList<'copy, 'f>) -> R, [src]

🔬 This is a nightly-only experimental API. (c_variadic #44930)

the c_variadic feature has not been properly tested on all supported platforms

Copies the va_list at the current location.

Trait Implementations

impl<'a, 'f> Debug for VaList<'a, 'f> where
    'f: 'a, [src]

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

Formats the value using the given formatter. Read more

impl<'a, 'f> Deref for VaList<'a, 'f> where
    'f: 'a, [src]

type Target = VaListImpl<'f>

The resulting type after dereferencing.

pub fn deref(&self) -> &VaListImpl<'f>[src]

Dereferences the value.

impl<'a, 'f> DerefMut for VaList<'a, 'f> where
    'f: 'a, [src]

pub fn deref_mut(&mut self) -> &mut VaListImpl<'f>[src]

Mutably dereferences the value.

Auto Trait Implementations

impl<'a, 'f> RefUnwindSafe for VaList<'a, 'f>

impl<'a, 'f> !Send for VaList<'a, 'f>

impl<'a, 'f> !Sync for VaList<'a, 'f>

impl<'a, 'f> Unpin for VaList<'a, 'f> where
    'f: 'a, 

impl<'a, 'f> !UnwindSafe for VaList<'a, 'f>

Blanket Implementations

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

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

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &Tⓘ

Notable traits for &'_ mut I

impl<'_, I> Iterator for &'_ mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
    F: Future + Unpin + ?Sized,  type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]

Immutably borrows from an owned value. Read more

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

pub fn borrow_mut(&mut self) -> &mut Tⓘ

Notable traits for &'_ mut I

impl<'_, I> Iterator for &'_ mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
    F: Future + Unpin + ?Sized,  type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]

Mutably borrows from an owned value. Read more

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

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

Performs the conversion.

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

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

Performs the conversion.

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.