cast | C parser and code generator for ruby | Parser library

by oggy Ruby Version: Current License: MIT

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

kandi X-RAY | cast Summary

cast is a Ruby library typically used in Utilities, Parser applications. cast has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

C parser and abstract syntax tree for Ruby.

Support

Quality

Security

License

Reuse

Support

cast has a low active ecosystem.

It has 47 star(s) with 13 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

There are 10 open issues and 4 have been closed. On average issues are closed in 70 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of cast is current.

Quality

cast has 0 bugs and 0 code smells.

Security

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

cast code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cast is licensed under the MIT License. This license is Permissive.

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

Reuse

cast releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

cast saves you 6146 person hours of effort in developing the same functionality from scratch.

It has 12809 lines of code, 903 functions and 20 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed cast and discovered the below as its top functions. This is intended to give you an instant insight into cast implemented functionality, and help decide if they suit your requirements.

Link nodes between two nodes
Parses range .
Move the given list .
Swap the node .
Returns a string representation of this statement .
Add nodes to the attached nodes
Returns an Array of Node .
Delegate to methods
Return the list of elements from the list .
Return the last element from the list .

Get all kandi verified functions for this library.

cast Key Features

No Key Features are available at this moment for cast.

cast Examples and Code Snippets

No Code Snippets are available at this moment for cast.

Community Discussions

Trending Discussions on cast

exception: "Illuminate\\Database\\QueryException" , Column not found: 1054 Champ using laravel 8

Allocating memory with calloc for an int pointer

How do I cast a float pointer to a uint8_t pointer in Metal Shader Language?

Using std::atomic with futex system call

Convert interface with nullable string property to string property

Spring Boot BatchAcknowledgingMessageListener Splitting Message on Commas

How do I dynamically get an object type and cast to it?

Left join returning additional data which I want to exclude

Copy files incrementally from S3 to EBS storage using filters

Why comparing a small floating-point number with zero yields random result?

QUESTION

exception: "Illuminate\\Database\\QueryException" , Column not found: 1054 Champ using laravel 8

Asked 2021-Jun-15 at 22:38

I want to Edit data, so for that, I should display it in a form. In my table in the database, I have a primary key named id_casting

So I have he following code :

My script :

...

ANSWER

Answered 2021-Jun-15 at 22:38

By default laravel thinks that id is the primary key in your table. To fix this you would have to a primary key variable in your model

Source https://stackoverflow.com/questions/67994004

QUESTION

Allocating memory with calloc for an int pointer

Asked 2021-Jun-15 at 21:19

Hey guys given the example below in C when operating on a 64bit system as i understand, a pointer is 8 byte. Wouldn't the calloc here allocate too little memory as it takes the sizeof(int) which is 4 bytes? Thing is, this still works. Does it overwrite the memory? Would love some clarity on this.

Bonus question: if i remove the type casting (int*) i sometimes get a warning "invalid conversion from 'void*' to 'int*', does this mean it still works considering the warning?

...

ANSWER

Answered 2021-Jun-15 at 21:19

calloc is allocating the amount of memory you asked for on the heap. The pointer is allocated by your compiler either in registers or on the stack. In this case, calloc is actually allocating enough memory for 4 ints on the heap (which on most systems is going to be 16 bytes, but for the arduino uno it would be 8 because the sizeof(int) is 2), then storing the pointer to that allocated memory in your register/stack location.

For the bonus question: Arduino uses C++ instead of C, and that means that it uses C++'s stronger type system. void * and int * are different types, so it's complaining. You should cast the return value of malloc when using C++.

Source https://stackoverflow.com/questions/67993513

QUESTION

How do I cast a float pointer to a uint8_t pointer in Metal Shader Language?

Asked 2021-Jun-15 at 21:02

I am trying to write the following C code in Metal Shading Language inside of a kernel void function:

...

ANSWER

Answered 2021-Jun-15 at 21:02

Don't know about metal specifically, but in ordinary C, you'd want to put f and byteArray inside a union

Here's some sample code:

Source https://stackoverflow.com/questions/67990565

QUESTION

Using std::atomic with futex system call

Asked 2021-Jun-15 at 20:48

In C++20, we got the capability to sleep on atomic variables, waiting for their value to change. We do so by using the std::atomic::wait method.

Unfortunately, while wait has been standardized, wait_for and wait_until are not. Meaning that we cannot sleep on an atomic variable with a timeout.

Sleeping on an atomic variable is anyway implemented behind the scenes with WaitOnAddress on Windows and the futex system call on Linux.

Working around the above problem (no way to sleep on an atomic variable with a timeout), I could pass the memory address of an std::atomic to WaitOnAddress on Windows and it will (kinda) work with no UB, as the function gets void* as a parameter, and it's valid to cast std::atomic to void*

On Linux, it is unclear whether it's ok to mix std::atomic with futex. futex gets either a uint32_t* or a int32_t* (depending which manual you read), and casting std::atomic to u/int* is UB. On the other hand, the manual says

The uaddr argument points to the futex word. On all platforms, futexes are four-byte integers that must be aligned on a four- byte boundary. The operation to perform on the futex is specified in the futex_op argument; val is a value whose meaning and purpose depends on futex_op.

Hinting that alignas(4) std::atomic should work, and it doesn't matter which integer type is it is as long as the type has the size of 4 bytes and the alignment of 4.

Also, I have seen many places where this trick of combining atomics and futexes is implemented, including boost and TBB.

So what is the best way to sleep on an atomic variable with a timeout in a non UB way? Do we have to implement our own atomic class with OS primitives to achieve it correctly?

(Solutions like mixing atomics and condition variables exist, but sub-optimal)

...

ANSWER

Answered 2021-Jun-15 at 20:48

You shouldn't necessarily have to implement a full custom atomic API, it should actually be safe to simply pull out a pointer to the underlying data from the atomic and pass it to the system.

Since std::atomic does not offer some equivalent of native_handle like other synchronization primitives offer, you're going to be stuck doing some implementation-specific hacks to try to get it to interface with the native API.

For the most part, it's reasonably safe to assume that first member of these types in implementations will be the same as the T type -- at least for integral values ^[1]. This is an assurance that will make it possible to extract out this value.

... and casting std::atomic to u/int* is UB

This isn't actually the case.

std::atomic is guaranteed by the standard to be Standard-Layout Type. One helpful but often esoteric properties of standard layout types is that it is safe to reinterpret_cast a T to a value or reference of the first sub-object (e.g. the first member of the std::atomic).

As long as we can guarantee that the std::atomic contains only the u/int as a member (or at least, as its first member), then it's completely safe to extract out the type in this manner:

Source https://stackoverflow.com/questions/67034029

QUESTION

Convert interface with nullable string property to string property

Asked 2021-Jun-15 at 18:49

I have the following two interfaces, one which allows a nullable vin, the other that doesn't:

...

ANSWER

Answered 2021-Jun-15 at 18:49

You can use a type predicate to define a user-defined type guard like this:

Source https://stackoverflow.com/questions/67989014

QUESTION

Spring Boot BatchAcknowledgingMessageListener Splitting Message on Commas

Asked 2021-Jun-15 at 17:49

I have a Spring Boot app with a Kafka Listener implementing the BatchAcknowledgingMessageListener interface. When I receive what should be a single message from the topic, it's actually one message for each line in the original message, and I can't cast the message to a ConsumerRecord.

The code producing the record looks like this:

...

ANSWER

Answered 2021-Jun-15 at 17:48

You are missing the listener type configuration so the default conversion service sees you want a list and splits the string by commas.

Source https://stackoverflow.com/questions/67990755

QUESTION

How do I dynamically get an object type and cast to it?

Asked 2021-Jun-15 at 17:41

How do I get the object type so I can directly cast to it? This is the ideal method I would like to execute:

...

ANSWER

Answered 2021-Jun-15 at 17:41

All controls derive from Control. Therefore, instead of using the type Object use Control. Control has most of the members of these controls like a Click event.

Source https://stackoverflow.com/questions/67990050

QUESTION

Left join returning additional data which I want to exclude

Asked 2021-Jun-15 at 15:42

I have 2 tables like below :

...

ANSWER

Answered 2021-Jun-15 at 15:40

Use outer apply:

Source https://stackoverflow.com/questions/67989325

QUESTION

Copy files incrementally from S3 to EBS storage using filters

Asked 2021-Jun-15 at 15:28

I wish to move a large set of files from an AWS S3 bucket in one AWS account (source), having systematic filenames following this pattern:

...

ANSWER

Answered 2021-Jun-15 at 15:28

You can use sort -V command to consider the proper versioning of files and then invoke copy command on each file one by one or a list of files at a time.

ls | sort -V

If you're on a GNU system, you can also use ls -v. This won't work in MacOS.

Source https://stackoverflow.com/questions/67985694

QUESTION

Why comparing a small floating-point number with zero yields random result?

Asked 2021-Jun-15 at 15:13

I am aware that floating-point numbers are tricky. But today I encountered a case that I cannot explain (and cannot reproduce using a standalone C++ code).

The code within a large project looks like this:

...

ANSWER

Answered 2021-Jun-15 at 09:57

Barring the undefined behavior which can be easily be fixed, you're seeing the effect of denormal numbers. They're extremely slow (see Why does changing 0.1f to 0 slow down performance by 10x?) so in modern FPUs there are usually denormals-are-zero (DAZ) and flush-to-zero (FTZ) flags to control the denormal behavior. When DAZ is set the denormals will compare equal to zero which is what you observed

Currently you'll need platform-specific code to disable it. Here's how it's done in x86:

Source https://stackoverflow.com/questions/67982764

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install cast

You can download it from GitHub.
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.