Houdini
Analogue of python's: array.array('H', file.read(n_bytes))
First, let’s say, that n_bytes = 2 and we do not need an array, then it’s pretty simple to write in elixir:
<<data :: bytes-size(2), _ :: binary>> = file
res = :binary.decode_unsigned(data)
Let’s return to python line: array.array('H', file.read(n_bytes))
It returns 2-byte array of numbers. ‘H’ means 2 byte.
So the question is, how to make the same in elixir?
Thanks in advance
Most Liked
josevalim
You should also be able to get an integer directly too:
for <<part::integer-unsigned-size(2) <- data>>, do: part
lud
Yes you can add the endianness directly in the form @josevalim gave :
for <<part::little-integer-unsigned-size(16) <- data>>, do: part
All possibilities are described here: Kernel.SpecialForms — Elixir v1.20.2
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Courses that'll move you from confusion to "Aha, now I get it!"
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #advent-of-code
- #elixirconf-us
- #distillery
- #processes
- #forms
- #api
- #metaprogramming
- #security
- #performance
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Real-time error tracking, performance insights, and observability for devs.
Practical resources that improve the lives of professional developers.
Producing high quality Elixir screencasts since 2017.
The deployment platform built for Elixir: PaaS ease, VPS control.
Courses that'll move you from confusion to "Aha, now I get it!"