BigInt | Arbitrary-precision arithmetic in pure Swift

by attaswift Swift Version: v5.3.0 License: MIT

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kandi X-RAY | BigInt Summary

BigInt is a Swift library. BigInt has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

this repository provides integer types of arbitrary width implemented in 100% pure swift. the underlying representation is in base 2^64, using array. this module is handy when you need an integer type that's wider than uintmax, but you don't want to add the gnu multiple precision arithmetic library as a dependency. two big integer types are included: biguint and bigint, the latter being the signed variant. both of these are swift structs with copy-on-write value semantics, and they can be used much like any other integer type. the library provides implementations for some of the most frequently useful functions on big integers, including. the implementations are intended to be reasonably efficient, but they are unlikely to be competitive with gmp at all, even when i happened to implement an algorithm with same asymptotic behavior as gmp. (i haven't performed a comparison benchmark, though.). the library has 100% unit test coverage. sadly this does not imply that there are no bugs in it. generated api docs are available at bigint can be

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Support

BigInt has a low active ecosystem.

It has 729 star(s) with 100 fork(s). There are 16 watchers for this library.

It had no major release in the last 12 months.

There are 13 open issues and 57 have been closed. On average issues are closed in 133 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of BigInt is v5.3.0

Quality

BigInt has no bugs reported.

Security

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

License

BigInt 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

BigInt releases are available to install and integrate.

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

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Community Discussions

Trending Discussions on BigInt

Unable to make a migration. Getting errors related to foreign keys

How to iterate rows with known start position and mixed column ordering, exactly as if walking the corresponding index?

How to insert a column from another table in T-SQL?

postgreSQL does this help improve performance?

How to do SQL insert for Postgres using Prisma with condition on count of rows?

SQL add up numbers to the same country

Is it a good solution to use primary key

how to create postgresql database using sql file in django? please guide me step by step. I have sql as follows

SQLAlchemy insert values into reflected table results in NULL entries all across

Getting error while run migrate command in laravel 8

QUESTION

Unable to make a migration. Getting errors related to foreign keys

Asked 2021-Jun-15 at 18:27

First migration file:

...

ANSWER

Answered 2021-Jun-15 at 18:27

change the posts migration post_id and author_id to this :

Source https://stackoverflow.com/questions/67976654

QUESTION

How to iterate rows with known start position and mixed column ordering, exactly as if walking the corresponding index?

Asked 2021-Jun-15 at 16:49

I have a given, unmodifiable table design which resembles:

...

ANSWER

Answered 2021-Jun-15 at 15:17

One hacky solution would switch the sign of the second column:

Source https://stackoverflow.com/questions/67988936

QUESTION

How to insert a column from another table in T-SQL?

Asked 2021-Jun-14 at 14:13

I have two tables I need to merge without creating a new view/table. Basically, I need to add only one column to an existing table taken from another table.

table1 looks like this:

table2 looks like this:

I need to get a table that would look just like table2 but with an additional column: programs_total. If there is no such id in the first column, I want the second column to have NULL. In this example, I want the raw with id=72_200 to have NULL in the programs_total column.

I tried the following script:

...

ANSWER

Answered 2021-Jun-14 at 13:52

Seems like what you really want an UPDATE:

Source https://stackoverflow.com/questions/67971276

QUESTION

postgreSQL does this help improve performance?

Asked 2021-Jun-14 at 11:00

Lets say i have a social media app where users can post and for each post i'm inserting a row to the posts table, and updating the user_affiliates table.

Now lets say that the user wants to see all of his/her posts what's the most efficient way to select posts that the user has posted?

This is a simplified version of my database:

...

ANSWER

Answered 2021-Jun-14 at 10:57

You have a user_id on the posts table, so why not just use that?

Source https://stackoverflow.com/questions/67968961

QUESTION

How to do SQL insert for Postgres using Prisma with condition on count of rows?

Asked 2021-Jun-14 at 05:18

I am trying to insert a row into database provided that - number of rows satisfying some condition already in the table is less than certain threshold, say 10. For example, in below model, I don't want to have a project to have more than 10 users; so count(projectId) should be less than 10:

...

ANSWER

Answered 2021-Jun-14 at 05:18

You can do this in two ways:

Add a version field in your model and perform Optimistic Concurrency Control in your application logic as shown here.
Use Prisma's raw query mechanism to run a native transaction.

Source https://stackoverflow.com/questions/67960217

QUESTION

SQL add up numbers to the same country

Asked 2021-Jun-13 at 19:21

My friend and I are making a mockup database of a movie rental. We are having trouble with a select command.

A list of all movies, showing how often (number) a movie was rented per nationality of customers. Sorted by frequency (largest first).

We tried by grouping the count(id) however it shows up as single rows

...

ANSWER

Answered 2021-Jun-13 at 19:21

You need to aggregate by the correct columns:

Source https://stackoverflow.com/questions/67961867

QUESTION

Is it a good solution to use primary key

Asked 2021-Jun-13 at 17:50

I want to create my own pet simple project (news site). I have several questions:

Is it a incorrect to use primary key of DB entity in the url of the page? ("/atricles/{id}/{article.name}"). Articles can have same name, so i can't do ("/articles/{article.name}") or i should create unique BIGINT number in DB to solve problem with deleting and finding articles.("/articles/{specilaUniqueNumber}/{Name}")

...

ANSWER

Answered 2021-Jun-13 at 14:05

As far as I have used in web developing of an API when I use a POST request I provide an id as a db entry. This id can be used for a PUT request so we know what entry we need to modify. This entry id which is generated by me in the POST, can be returned in POST response, so the developer who uses the API can use it in a next PUT request to define to API what entry of the db wants to modify. But as I said this is given to the response of the POST request, which is hidden by the POST response and not free in all users eyes in the URL.

If we use it in the URL this means that we use a GET request. I don't think it is so safe to expose it to everyone's eyes. You should create as you said a url with all the generally accepted characters that will not contain the real id of your entry in the db.

If you want to provide this id to the API as I said you can do it by POST reply hidden in every users eyes. The url has to be something that someone can press to get your page.

I don't know if you understand what I want to say to you. Ask me if you want. But in the question you don't say anything where and how you use this id in the url. What Framework and what application you develop. That is why I told you my way of story. I presumed that you develop restful services.

Source https://stackoverflow.com/questions/67958836

QUESTION

how to create postgresql database using sql file in django? please guide me step by step. I have sql as follows

Asked 2021-Jun-12 at 21:32

here is sql code of file that i want to convert into postgresql database

...

ANSWER

Answered 2021-Jun-12 at 21:32

ERROR: character with byte sequence 0x90 in encoding "WIN1252" has no equivalent in encoding "UTF8"

Source https://stackoverflow.com/questions/67750831

QUESTION

SQLAlchemy insert values into reflected table results in NULL entries all across

Asked 2021-Jun-12 at 10:55

The following code results in None () across the row in every attempt. The query.values() code below is just a shortened line so as to keep things less complicated. Additionally I have problems inserting a dict as JSON in the address fields but that's another question.

...

ANSWER

Answered 2021-Jun-12 at 05:17

I am not sure what do you mean with

The query.values() code below is just a shortened line so as to keep things less complicated.

So maybe I am not understanding the issue properly. At any case the problem here is that you execute the insert() and the values() separately, while it is meant to be "chained".

Doing something like:

Source https://stackoverflow.com/questions/67945614

QUESTION

Getting error while run migrate command in laravel 8

Asked 2021-Jun-12 at 05:30

I'm using Laravel Cashier package.

I've added below line AppServiceProvider.php > boot method

...

ANSWER

Answered 2021-Jun-12 at 05:30

I've fixed issue by following steps:

First I run command php artisan vendor:publish --tag="cashier-migrations". It will create a new migrations and I've removed code of up() and down() method from new migrations.

By doing this we can keep our override migration of Cashier package.

Run command php artisan migrate

Source https://stackoverflow.com/questions/67934242

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

Vulnerabilities

No vulnerabilities reported

Install BigInt

You can download it from GitHub.

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