containerof | % containerof - Macros supporting intrusive data structures | Reflection library
kandi X-RAY | containerof Summary
kandi X-RAY | containerof Summary
% containerof - Macros supporting intrusive data structures in Rust.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of containerof
containerof Key Features
containerof Examples and Code Snippets
Community Discussions
Trending Discussions on containerof
QUESTION
I am trying to wrap my mind around C++ 20 concept and constraint by porting some of my old code.
...ANSWER
Answered 2021-Jun-13 at 19:33A concept is not a type, so it can’t appear as a container element type—neither in the type of an object (this is why you have to use std::vector
to approximate std::vector
) nor in the type for your concept ContainerOf
. Moreover, you can’t use a concept as a template argument, so you can’t have a higher-order ContainerLike
concept.
What you can do is make a Container
concept that checks only for empty
, add the constraint
QUESTION
I try to avoid @SuppressWarnings("unchecked")
when possible, but I don't find any solution for this case.
Let a Container:
...ANSWER
Answered 2020-Apr-17 at 12:56It is safe to suppress an unchecked cast warning, provided you can actually guarantee that it is safe (e.g. by construction).
If it is guaranteed to be the case that a Container
's type parameter matches the type of its type
field, then this would be safe.
If that's the case, add the suppression, but it is a good idea to document why you believe it to be safe:
QUESTION
I have a problem in Event-B to discharge proof obligations. In my work,
I want to formalize the specification of memory protection requirements to check the consistency between them. In order to do that, I used Event-B Context to formalize the system's structure and used Event-B Machine to describe the requirements. Each requirement is described in both Invariant and Event. Event-B will check each pair requirement to find the inconsistency.
However, it cannot prove that two requirements are consistent:
1: "Read access from NonTrusted to the data_section of other OS_Apps is may_prevent"
2: "Read and Write access from an OS_App to its own data_section are shall_permit"
This is my work. Firstly, in the context file, I describe the structure of the system and the access control:
1. System's Structure:
We have 2 types of OS_Application: Trusted and NonTrusted.
2 types of OS_Objects: Tasks and ISRs.
2 types of ISRs: Category_1 and Category_2.
Each OS_Object belongs to one OS_App: ContainerOf ∈ OS_Obj → OS_App
Each OS_App has a code section: AppCode ∈ OS_App → CodeSection
Memory has 2 parts: DataSection and Stack
OS_App and OS_Obj may have DataSection:
- AppData ∈ OS_App ⇸ DataSecs
- ObjData ∈ OS_Obj ⇸ DataSecs
OS_Obj has their own Stack: ObjStack ∈ OS_Obj → Stacks
2. Access Control:
The Access is from Subjects to Objects:
Subjects include: OS_App and OS_Obj
Objects include: Code_Section, and Memory
In the below code, line 20 describes: "The stack for these objects, by definition, belongs only to the owner object and there is therefore no need to share stack data between objects, even if those objects belong to the same OS-Application."
line 21 describes: "Code sections are either private to an OS-Application or can be shared between all OS-Applications"
line 22, 23 describe: "OS-Applications can have private data sections and Tasks/ISRs can have private data sections."
line 24 describes: "OS-Application's private data sections are shared by all Tasks/ISRs belonging to that OS-Application. "
By the analysis, I define the context as follows:
...ANSWER
Answered 2017-Jul-21 at 08:00I'm a bit guessing here since your given model is quite long and it's not obvious what is going wrong or what should be proven. You might improve your question by removing the not used stuff.
You want to prove
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install containerof
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page