[−][src]Struct std::ffi::VaList
🔬 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>
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🔬 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,
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T: VaArgSafe,
🔬 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,
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F: FnOnce(VaList<'copy, 'f>) -> R,
🔬 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,
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'f: 'a,
impl<'a, 'f> DerefMut for VaList<'a, 'f> where
'f: 'a,
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'f: 'a,
fn deref_mut(&mut self) -> &mut VaListImpl<'f>
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impl<'a, 'f> Deref for VaList<'a, 'f> where
'f: 'a,
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'f: 'a,
type Target = VaListImpl<'f>
The resulting type after dereferencing.
fn deref(&self) -> &VaListImpl<'f>
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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,
'f: 'a,
impl<'a, 'f> !Send for VaList<'a, 'f>
impl<'a, 'f> !Sync for VaList<'a, 'f>
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Ffn borrow_mut(&mut self) -> &mut T
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ⓘImportant traits for &'_ mut F
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,