Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
int
Rust
提交
848a6215
R
Rust
项目概览
int
/
Rust
12 个月 前同步成功
通知
1
Star
0
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
R
Rust
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
848a6215
编写于
7月 12, 2021
作者:
E
est31
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Use the write function in some more places
上级
8e328be7
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
6 addition
and
6 deletion
+6
-6
library/core/src/mem/maybe_uninit.rs
library/core/src/mem/maybe_uninit.rs
+6
-6
未找到文件。
library/core/src/mem/maybe_uninit.rs
浏览文件 @
848a6215
...
...
@@ -79,7 +79,7 @@
/// // a `MaybeUninit<T>` may be invalid, and hence this is not UB:
/// let mut x = MaybeUninit::<&i32>::uninit();
/// // Set it to a valid value.
///
unsafe { x.as_mut_ptr().write(&0); }
///
x.write(&0);
/// // Extract the initialized data -- this is only allowed *after* properly
/// // initializing `x`!
/// let x = unsafe { x.assume_init() };
...
...
@@ -135,7 +135,7 @@
/// // this loop, we have a memory leak, but there is no memory safety
/// // issue.
/// for elem in &mut data[..] {
///
*elem = MaybeUninit::new
(vec![42]);
///
elem.write
(vec![42]);
/// }
///
/// // Everything is initialized. Transmute the array to the
...
...
@@ -161,7 +161,7 @@
/// let mut data_len: usize = 0;
///
/// for elem in &mut data[0..500] {
///
*elem = MaybeUninit::new
(String::from("hello"));
///
elem.write
(String::from("hello"));
/// data_len += 1;
/// }
///
...
...
@@ -543,7 +543,7 @@ pub const fn as_ptr(&self) -> *const T {
/// use std::mem::MaybeUninit;
///
/// let mut x = MaybeUninit::<Vec<u32>>::uninit();
///
unsafe { x.as_mut_ptr().write(vec![0, 1, 2]); }
///
x.write(vec![0, 1, 2]);
/// // Create a reference into the `MaybeUninit<Vec<u32>>`.
/// // This is okay because we initialized it.
/// let x_vec = unsafe { &mut *x.as_mut_ptr() };
...
...
@@ -602,7 +602,7 @@ pub const fn as_mut_ptr(&mut self) -> *mut T {
/// use std::mem::MaybeUninit;
///
/// let mut x = MaybeUninit::<bool>::uninit();
///
unsafe { x.as_mut_ptr().write(true); }
///
x.write(true);
/// let x_init = unsafe { x.assume_init() };
/// assert_eq!(x_init, true);
/// ```
...
...
@@ -751,7 +751,7 @@ pub unsafe fn assume_init_drop(&mut self) {
///
/// let mut x = MaybeUninit::<Vec<u32>>::uninit();
/// // Initialize `x`:
///
unsafe { x.as_mut_ptr().write(vec![1, 2, 3]); }
///
x.write(vec![1, 2, 3]);
/// // Now that our `MaybeUninit<_>` is known to be initialized, it is okay to
/// // create a shared reference to it:
/// let x: &Vec<u32> = unsafe {
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录