https://github.com/hanabi1224/vlang-big-integer

Big interger implemented in pure vlang
https://github.com/hanabi1224/vlang-big-integer

Last synced: 3 months ago
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Big interger implemented in pure vlang

• Host: GitHub
• URL: https://github.com/hanabi1224/vlang-big-integer
• Owner: hanabi1224
• License: mit
• Created: 2021-02-05T01:06:51.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2023-11-26T01:03:15.000Z (almost 2 years ago)
• Last Synced: 2025-03-30T19:13:40.097Z (6 months ago)
• Language: V
• Homepage:
• Size: 92.8 KB
• Stars: 6
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# vlang-big-integer

Big interger impelemented in pure vlang

[![CI](https://github.com/hanabi1224/vlang-big-integer/actions/workflows/main.yml/badge.svg)](https://github.com/hanabi1224/vlang-big-integer/actions/workflows/main.yml)

[![Build status](https://img.shields.io/appveyor/ci/hanabi1224/vlang-big-integer/main.svg)](https://ci.appveyor.com/project/hanabi1224/vlang-big-integer)

[![MIT License](https://img.shields.io/github/license/hanabi1224/vlang-big-integer.svg)](https://github.com/hanabi1224/vlang-big-integer/blob/master/LICENSE)

## Install

```bash

v install hanabi1224.biginteger

```

## Import

```v

import hanabi1224.biginteger

```

## Usage

```v

v1 := biginteger.from_int(-3)

// Note that '_' and ',' are allowed, only base-10 is currently supported.

v2 := biginteger.from_str("-23333333333333333333333333333333333333") 

v3 := biginteger.from_u64(9876554321)

// constants

zero := biginteger.zero

// + - * / %, TODO: pow etc.

println('$v2 + $ v3 = ${v2 + v3}')

println('$v2 - $ v3 = ${v2 - v3}')

println('$v2 * $ v3 = ${v2 * v3}')

println('$v2 / $ v3 = ${v2 / v3}')

println('$v2 % $ v3 = ${v2 % v3}')

// bit shifting TODO: bit and / or ops

println('v2 << 32 = ${v2.lshift(32)}')

println('v2 >> 2 = ${v2.rshift(2)}')

```

## Examples

### pidigits

```bash

v -prod -cc clang -gc boehm_full run ./examples/pidigits.v

```