From 369d11587339ce74f8ebc76f2607fe55545eaf7d Mon Sep 17 00:00:00 2001 From: garhve Date: Tue, 20 Dec 2022 11:04:25 +0800 Subject: Build small project following the book --- .../guessing_game/target/doc/libc/enum.c_void.html | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/libc/enum.c_void.html (limited to 'rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/libc/enum.c_void.html') diff --git a/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/libc/enum.c_void.html b/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/libc/enum.c_void.html new file mode 100644 index 0000000..da70b33 --- /dev/null +++ b/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/libc/enum.c_void.html @@ -0,0 +1,17 @@ +c_void in libc - Rust

Enum libc::c_void

1.30.0 · source · [−]

pub enum c_void {
+    // some variants omitted
+}

Expand description

Equivalent to C’s void type when used as a pointer.

+

In essence, *const c_void is equivalent to C’s const void* +and *mut c_void is equivalent to C’s void*. That said, this is +not the same as C’s void return type, which is Rust’s () type.

+

To model pointers to opaque types in FFI, until extern type is +stabilized, it is recommended to use a newtype wrapper around an empty +byte array. See the Nomicon for details.

+

One could use std::os::raw::c_void if they want to support old Rust +compiler down to 1.1.0. After Rust 1.30.0, it was re-exported by +this definition. For more information, please read RFC 2521.

+

Trait Implementations

1.16.0 · source

impl Debug for c_void

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for c_void

impl Send for c_void

impl Sync for c_void

impl Unpin for c_void

impl UnwindSafe for c_void

Blanket Implementations

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

+

impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

+

That is, this conversion is whatever the implementation of +From<T> for U chooses to do.

+

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

\ No newline at end of file -- cgit v1.2.3-70-g09d2