RLib | highly cohesive and low coupling framework | iOS library

by Rprop C++ Version: v5.7 License: Unlicense

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | RLib Summary

RLib is a C++ library typically used in Mobile, iOS, Framework applications. RLib has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A lightweight, highly cohesive and low coupling framework of useful native toolkit.

Support

Quality

Security

License

Reuse

Support

RLib has a low active ecosystem.

It has 30 star(s) with 20 fork(s). There are 5 watchers for this library.

It had no major release in the last 12 months.

There are 2 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of RLib is v5.7

Quality

RLib has 0 bugs and 0 code smells.

Security

RLib has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

RLib code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

RLib is licensed under the Unlicense License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

RLib releases are available to install and integrate.

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RLib Key Features

No Key Features are available at this moment for RLib.

RLib Examples and Code Snippets

No Code Snippets are available at this moment for RLib.

Community Discussions

Trending Discussions on RLib

can you print/echo message from .Renviron?

Mozilla Synstorage-rs installation / make fails under RHEL8

I cant install cargo afl due to conflict libc in build

Error when trying to build rust project with cargo build-bpf

Rust ink, Unable to use imported module due an "unresolved import" error

error[E0277]: the trait bound `NotesDs: Serialize` is not satisfied

Failing to use CXX to link Rust-written library in C++ project

Writing to files in Bulk vs Chunks

.Rlib and .d file instead of .wasm

Rust compile C/Cuda

QUESTION

can you print/echo message from .Renviron?

Asked 2022-Mar-17 at 09:20

It is possible to print messages from .Renviron so it is shown in RStudio at startup?

For example:

...

ANSWER

Answered 2022-Mar-16 at 15:31

As noted above you could set environment variables in R/R-4.x.x/etc/Renviron.site to set these for all users, even when projects are involved:

Source https://stackoverflow.com/questions/71499027

QUESTION

Mozilla Synstorage-rs installation / make fails under RHEL8

Asked 2022-Mar-13 at 07:13

I'm currently trying to install mozilla synstorage-RS on a RockyLinux machine, and step by step I could reduce the amount of errors, but now I got stuck. I found in Makefile to execute the following command in case of SSL trouble, so I did so cargo build --features grpcio/openssl and this is fine, this finally works

...

ANSWER

Answered 2022-Mar-13 at 07:13

So the answer is to use cargo clean before continuing. I don't know why, but there seemed to be some old artifacts even if I hadn't built before. However, after executing cargo clear command, the build openssl runs completely (many lines more than before) and after that, there is one more little step to do:

Source https://stackoverflow.com/questions/71285784

QUESTION

I cant install cargo afl due to conflict libc in build

Asked 2022-Mar-10 at 08:08

i run this command for installing afl but got this error :slight_smile: cargo install --force afl --verbose

...

ANSWER

Answered 2022-Mar-10 at 08:08

its done. cargo +nightly install --force afl --verbose

Source https://stackoverflow.com/questions/71414538

QUESTION

Error when trying to build rust project with cargo build-bpf

Asked 2022-Mar-07 at 13:11

I am currently Solana through a tutorial. After creating the project, adding dependencies and writing my program, I am supposed to run the following command to create a build of my Rust code that is suitable to deploy to Solana

...

ANSWER

Answered 2022-Mar-07 at 13:11

I solved the error. /you can't build solana program on a windows environnement. You need to use a WSL ubuntu subsystem.

Source https://stackoverflow.com/questions/71110199

QUESTION

Rust ink, Unable to use imported module due an "unresolved import" error

Asked 2022-Mar-07 at 12:21

I'm trying to use my custom ERC20 contract that is stored in my local storage in the SWAP project that I'm working on.

the error I'm getting while trying to use the erc20 import inside the SWAP contract:

...

ANSWER

Answered 2022-Mar-04 at 15:42

Change

use erc20::Erc20;

use erc20::Erc20Ref;

Put this at the top of the ERC20 contract:

pub use self::erc20::{Erc20, Erc20Ref};

You can see an example of this in the subber contract where it specifies itself as SubberRef and is then called from the main delegator contract

Source https://stackoverflow.com/questions/71352753

QUESTION

error[E0277]: the trait bound `NotesDs: Serialize` is not satisfied

Asked 2022-Feb-17 at 13:00

#[derive(BorshSerialize, BorshDeserialize)]
pub struct NotesDs {
    pub own: Vec,
    pub shared: UnorderedMap>,
}

impl NotesDs{
    pub fn new() -> Self {
        assert!(env::state_read::().is_none(), "Already initialized");
        Self {
            own: Vec:: new(),
            shared: UnorderedMap::new(b"w".to_vec()),
        }
    }
}
#[near_bindgen]
#[derive(BorshDeserialize, BorshSerialize)]
pub struct Note {
    pub note_list : UnorderedMap, 
}

impl Default for Note {
    fn default() -> Self {
        // Check incase the contract is not initialized
        env::panic(b"The contract is not initialized.")
    }
}

#[near_bindgen]
impl Note {
    /// Init attribute used for instantiation.
    #[init]
    pub fn new() -> Self {
        assert!(env::state_read::().is_none(), "Already initialized");
        Self {
            note_list: UnorderedMap::new(b"h".to_vec()),
        }
    }
    pub fn get_note_list(&mut self, account_id: AccountId) -> NotesDs {
        self.note_list.get(&account_id).unwrap()
    }
}

...

ANSWER

Answered 2022-Feb-17 at 13:00

You implemented Borsh serialization on the NotesDs struct using #[derive(BorshSerialize, BorshDeserialize)], and you're returning NotesDs from this contract function:

Source https://stackoverflow.com/questions/71116156

QUESTION

Failing to use CXX to link Rust-written library in C++ project

Asked 2022-Feb-14 at 10:05

I am testing CXX with a very simple project to link a Rust library into a C++ executable.

I write a foo() -> () Rust function and try to access it from C++ but the linker does not find it.

Here's what I have:

...

ANSWER

Answered 2022-Feb-14 at 10:05

Considering this documentation, the build.rs script should generate the lib.rs.h which was missing in your attempt.

Note that the example in the documentation considers that the main program comes from Rust, and that the C++ code is an extension. In your question, it is the opposite situation: your main program comes from C++ but is extended by some Rust code.

This answer is made of two parts:

a minimal example very similar to yours (no C++ code to be called from Rust),
a more complete example with a bidirectional interaction between C++ and Rust (but the main program still is on the C++ side).

edit to answer subsequent questions in the comments

As said in the comment of the second build.rs below, the name chosen in .compile("cpp_from_rust") will be used to name a library containing the compiled C++ code (libcpp_from_rust.a for example). This library will then be used by Rust to extend the Rust code: the libcpprust.a main target produced by Rust contains libcpp_from_rust.a.

If no C++ file is provided before .compile() (as in the first, minimal example below), this C++ library only contains the symbols enabling extern "Rust" access from C++.

Source https://stackoverflow.com/questions/71097948

QUESTION

Writing to files in Bulk vs Chunks

Asked 2022-Feb-11 at 13:38

Setup

With standard C code (= no platform specific code), I have written a program to do the following:

Get starting clock()
Open a file
write a ~250MB long string to it using one of the below listed modes
close the file.
Repeat 2...4 10000 times as fast as possible, rip storage unit
Get ending clock()
Do some time calculations and output

A) bulk mode: Write everything at once (= one call to fwrite)
B) chunk mode: Write string in chunks. One chunk is slightly more than 1MB. (= multiple calls to fwrite, about ~250).

Then, I let the program run on two different computers.

Expection

I expect A) being faster than B).

Results

Below was on my beefy PC with a Samsung 970 EVO M.2 SSD (CPU = AMD Ryzen 2700x: 8 cores / 16 threads). The output on this one is slightly wrong, it should've been Ns/file, not Ns/write)

Below was on my laptop. I don't really know what type of SSD is installed (and I don't bother too much to check it out). If it matters, or anyone wants to and knows how to research, the laptop is a Surface Book 3.

Conclusion

Beefy PC: B) is faster than A), against expectations.
Laptop: A) is faster than B), within expectations.

My best guess is that some sort of hidden parellization is at work. Either the CPU does smart things, the SSD does very smart things, or they work together to do incredibly smart things. But pinning and writing down anything further sounds too absurd for me to keep it staying here.

What explains the difference in my expectation and the results?

The benchmark

Check out https://github.com/rphii/Rlib, under examples/writecomp.c

More Text

I noticed this effect while working on my beefy PC with a string of length ~25MB. Since B) was a marginal, but consistent, ~4ms faster than A), I increased the string length and did a more thorough test.

...

ANSWER

Answered 2022-Feb-11 at 13:38

Since no one's gonna do it, I'll answer my question based on the comment I got.

clock does not measure the wall clock time but the CPU time. Please read this post.
Reads/writes are generally buffered.
Operating systems generally uses an in-memory cache (especially for HDD).
SSD reads can be faster in parallel (and often are for recent ones) while HDD are almost never faster in parallel. (this quite recent post provides some information about caching and buffering).

Source https://stackoverflow.com/questions/71057375

QUESTION

.Rlib and .d file instead of .wasm

Asked 2022-Jan-21 at 18:39

I want to compile a .rs file in a Rust lib to a .wasm.

...

ANSWER

Answered 2022-Jan-21 at 18:39

rustc considers .wasm files to fill the “native dynamic library” role in the WASM target. Add this to your Cargo.toml configuration to request that build instead of the default .rlib:

Source https://stackoverflow.com/questions/70805690

QUESTION

Rust compile C/Cuda

Asked 2022-Jan-19 at 13:30

I have an existing project in Rust / C and I want to migrate some low level hashing stuff to CUDA, but I can't get it to finish compiling.

I believe the compile part is working, as the error only appears in the linker if I call the function from the .cu file

build.rs

...

ANSWER

Answered 2022-Jan-19 at 13:30

There was a linking problem as CUDA uses C++ linkage

The solution was to modify HelloWorld.h to

Source https://stackoverflow.com/questions/70761760

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Vulnerabilities

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Install RLib

You can download it from GitHub.

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