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Programming language: Crystal
Tags: Algorithms And Data Structures    
Latest version: v0.31.1

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README

Bit Fields for Crystal-Lang

Pure Crystal implementation of Bit Fields. Handles encoding/decoding of bytes.

Installation

  1. Add the dependency to your shard.yml: yaml dependencies: bitfields: github: elorest/bitfields
  2. Run shards install

Usage

require "bitfields"

class CrossBit < BitFields
  bf rpms : UInt32, 32
  bf temp : UInt8, 4 
  bf psi : UInt16, 9 
  bf power : UInt8, 1 
  bf lights : UInt8, 2 
end

crossbit = CrossBit.new(Bytes[109, 121, 110, 97, 109, 245])
crossbit.temp          #=> 13_u8
crossbit.psi           #=> 342_u16
crossbit.power         #=> 1_u8
crossbit.lights        #=> 3_u8
crossbit.to_slice      #=> Bytes[109, 121, 110, 97, 109, 245]
crossbit.to_s          #=> |lights|power|psi|temp|rpms|
                       #=> |11|1|101010110|1101|01100001011011100111100101101101|
crossbit.power = 0     #=> 0_u8
crossbit.to_slice      #=> Bytes[109, 121, 110, 97, 109, 213]

Contributing

  1. Fork it (https://github.com/elorest/bitfields/fork)
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors