<<binary, syntax>>, I'm real confused

[Elliot Crosby-McCullough]

Hi all,

I've been doing a bunch of binary creation and parsing in Elixir recently and I'm having trouble pinning down its behaviour.  I've two main problems:

1. I can't seem to find a properly comprehensive doc for Elixir's binary syntax.  All the googles point to the same couple of elixir guides which only provide an overview.
2. Forming new binaries using the << >> syntax sometimes triggers `** (ArgumentError) argument error` with no other information as to which part is at fault or why.  I've not been able to precisely figure out what causes this class of errors, though it's often (but not always) when I use variables or nested << >> syntax to build binaries.

Can anyone point me at some docs where I can figure this all out?

Regards,

Elliot

[Martin Svalin]

I think the best docs on <<>> is in Kernel.SpecialForms

http://elixir-lang.org/docs/stable/elixir/Kernel.SpecialForms.html#%3C%3C%3E%3E/1

- Martin

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[Elliot Crosby-McCullough]

Ahh, perfect.  I'd skipped over that thinking it was about web forms, which in retrospect makes no sense at all.

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