Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged rust
0
votes
1.0k
views
1
answer
rust - What is the difference between <T: Trait> Box<T> and &Trait / Box<Trait>?
When writing code with traits you can put the trait in a trait bound: use std::fmt::Debug; fn ... one of several intermingled concepts) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - Is it possible to have a constructor function in a trait?
I'm trying to find examples for constructor functions in traits, but haven't had much luck. Is this a ... terminated with error code 101 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.3k
views
1
answer
rust - Is there a built-in way to compare two iterators?
I've written the following function to compare two iterators, element-by-element. However, it would be great if I could ... !(iter_eq(a, b)); } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Does this error message mean I can use pattern matching in for loops?
I do not expect the following code to work, but as part of grammar exploration, I tried in playground: fn main( ... the right grammar to do so? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.3k
views
1
answer
rust - How can you easily borrow a Vec<Vec<T>> as a &[&[T]]?
How can you easily borrow a vector of vectors as a slice of slices? fn use_slice_of_slices<T>(slice_of_slices: &[&[T]]) ... ]]> for Vec<Vec<T>>? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.6k
views
1
answer
rust - Decimal number to hexadecimal string
Does Rust have a set of functions that make converting a decimal integer to a hexadecimal string easy? I ... I overthinking this whole thing? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
962
views
1
answer
rust - Manipulating an object from inside a loop that borrows it
I'm writing some code in Rust that connects to a remote server, and depending on the messages sent by that ... actual solution would look like). See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.5k
views
1
answer
rust - mutably borrow fields from a mutably borrowed struct
from the borrowing rule: At any given time, you can have either one mutable reference or any number of immutable ... any doc to support it. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Lifetime issue when using the Any trait to get references to structs containing references
I ran into a lifetime problem with a little game. The below code represents a very boiled down version of the ... , or why is this impossible? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.3k
views
1
answer
rust - Do I have to use a usize to access elements of a vector?
I have a 2D vector that rejects indexing using i32 values, but works if I cast those values using as usize: #[ ... i32 to index shouldn't work. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - Cannot move out of captured variables in an `FnMut` closure
pub fn create_future( notificator: mpsc::Sender<usize>, proxy: Proxy, ) -> impl Future<Item = (), Error = () ... ? How can I solve this problem? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Iterating through a recursive structure using mutable references and returning the last valid reference
I'm trying to recurse down a structure of nodes, modifying them, and then returning the last Node that I get to. ... = temp, } } current } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
961
views
1
answer
rust - Opposite of Borrow trait for Copy types?
I've seen the Borrow trait used to define functions that accept both an owned type or a reference, e.g. T or ... of writing this sort of thing? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - Mutable borrow in function argument
Why doesn't the following code compile (playground): use std::collections::HashMap; fn main() { let mut h: ... still not finished in all cases? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
972
views
1
answer
rust - Why do the coherence rules raise the error "the type parameter must be used as the type parameter for some local type"?
Why does code example 1 compile but example 2 gives a compilation error? Example 1: use std::ops::Index; ... be implemented for a type parameter See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Explicit lifetime declarations in trait objects held by structs
In the answer to this question there's a discussion of how to refer to trait objects held by structs which ... is a lifetime bound already. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.3k
views
1
answer
rust - Can you create a function that takes another function and a parameter and returns a lazy stream of nested function calls?
In Clojure, I use a function called iterate that: Returns a lazy sequence of x, (f x), (f (f x)) etc. f must be free ... => Some(3 * n + 1) } } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - How to generate documentation for private items
I have a project with: main.rs module_1/mod.rs module_2/mod.rs module_2/module_3/mod.rs when I run cargo doc ... that. Somebody can explain me? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.4k
views
1
answer
rust - "cannot infer an appropriate lifetime for pattern due to conflicting requirements" in `ref mut` pattern
struct RefWrap<'a> { wrap: &'a mut Option<String>, } impl<'a> RefWrap<'a> { fn unwrap(&mut self) -> &' ... sure it's not helpful in this case. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - How do I decide when to mark a function as unsafe?
When is it appropriate to mark a function as unsafe versus just using an unsafe block? I saw this function while ... to use one or the other. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
998
views
1
answer
rust - Parameter type may not live long enough (with threads)
This is similar to Parameter type may not live long enough?, but my interpretation of the solution doesn't seem to ... am I doing wrong here? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Calling a method on a value inside a mutable Option
I have a mutable Option type and I'm trying to mutate the thing inside the Some but I can't figure out ... an example to help me understand? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - Why is the value moved into the closure here rather than borrowed?
The Error Handling chapter of the Rust Book contains an example on how to use the combinators of Option and ... done without the explicit move? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.2k
views
1
answer
rust - Where does rustup install itself to?
I understand that rustup installs the rustc and cargo binaries to ~/.cargo/bin, but where does it install the ... if that makes a difference. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.0k
views
1
answer
rust - Access submodule from another submodule when both submodules are in the same main module
I'm using rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14) and I've got the following setup: my_app/ | ... `???` What am I missing? Thanks. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.4k
views
1
answer
rust - How can I specify linker flags/arguments in a build script?
I'm using Rust, bindgen, and a build script to work on some FFI bindings to a library. This library is ... specifying it from within build.rs? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.5k
views
1
answer
rust - How to use the same iterator twice, once for counting and once for iteration?
It seems that an iterator is consumed when counting. How can I use the same iterator for counting and then iterate on it? ... ("{}", value); } } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
0
votes
1.1k
views
1
answer
rust - Is there a non-messy way to chain the results of functions that return Option values?
I have some code that looks like this: f(a).and_then(|b| { g(b).and_then(|c| { h(c).map(|d| ... , d) } rescue NonexistentValueException { None } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
rust
Page:
« prev
1
2
3
4
5
6
7
8
9
...
33
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] webgl,使用canvas作为纹理渲染。
[2] 请教一下两个系统的钱包功能设计
[3] phpstorm 错误检测导致的红色波浪线
[4] 为什么会报Uncaught SyntaxError: Unexpected token '<'错误?
[5] node.js - All messages appear on the WebSocket channel
[6] java - How to add multiple solution with bactraking method
[7] image-webpack-loader导致的报错问题
[8] webpack打包没找到资源?
[9] VPN输入框我并没有开启大写模式,总是显示成大写英文字母,谁知道为啥
[10] django - How to do ModelName.objects.filter in html
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...