Struct std::ffi::VaList
#[repr(transparent)]pub struct VaList<'a, 'f> where 'f: 'a, { /* fields omitted */ }
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>
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,
c_variadic
#44930)the c_variadic
feature has not been properly tested on all supported platforms
Advance to the next arg.
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,
pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl<'a, 'f> Deref for VaList<'a, 'f> where
'f: 'a,
type Target = VaListImpl<'f>
The resulting type after dereferencing.
pub fn deref(&self) -> &VaListImpl<'f>
Dereferences the value.
impl<'a, 'f> DerefMut for VaList<'a, 'f> where
'f: 'a,
pub fn deref_mut(&mut self) -> &mut VaListImpl<'f>
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> From<T> for T
pub fn from(t: T) -> T
Performs the conversion.
pub fn into(self) -> U
Performs the conversion.
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>
Performs the conversion.
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>
Performs the conversion.
© 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