BitsInBytes

'BitsInBytes' is a ruby gem which allows the user to determine what bits are set in a byte in an object oriented way.

Installation

Add this line to your application's Gemfile:

gem 'bits_in_bytes'

And then execute:

$ bundle

Or install it yourself as:

$ gem install bits_in_bytes

Usage

You can use the 'BitInByte' object to find out which bits are set in a given byte. The first argument is the position of the bit you would like to check. The position must be in the range of 1 to 8. The second argument is the actual byte value, which must be in the range of 0 to 255. It may be a decimal, hex, octal or binary value.

Simple examples:

BitInByte.new(8, 128).value # output -> true
BitInByte.new(4, 4).value # output -> false
BitInByte.new(1, 17).value # output -> true
BitInByte.new(3, 64).value # output -> false
BitInByte.new(5, 0x10).value # output -> true
BitInByte.new(7, 0b00000011).value # output -> false
BitInByte.new(2, 0o12).value # output -> true

Development

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome and highly appreciated on GitHub at https://github.com/SNException/bits_in_bytes.

License

The gem is available as open source under the terms of the MIT License. See LICENSE.txt for more information.