W3cubDocs

/Rust

Struct std::ffi::VaList

#[repr(transparent)]
pub struct VaList<'a, 'f> where    'f: 'a,    '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: 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> DerefMut for VaList<'a, 'f> where
    'f: 'a, 
[src]

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

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

type Target = VaListImpl<'f>

The resulting type after dereferencing.

Auto Trait Implementations

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

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

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

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

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

Blanket Implementations

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.

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

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

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.

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

ⓘ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 = <I as Iterator>::Item;
impl<'_, R: Read + ?Sized> Read for &'_ mut R
impl<'_, W: Write + ?Sized> Write for &'_ mut W

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

ⓘ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 = <I as Iterator>::Item;
impl<'_, R: Read + ?Sized> Read for &'_ mut R
impl<'_, W: Write + ?Sized> Write for &'_ mut W

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

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/ffi/struct.VaList.html