How do I convert an integer to a binary in Erlang?

Question

I am trying to make an integer into a binary: ``` 543 = <<"543">> ``` How can I do this without ``` integer_to_list(list_to_binary(K)). ```

Accepted Answer

If you want to convert 543 to <<"543">> I don't think you can find something faster than: ``` 1> list_to_binary(integer_to_list(543)). <<"543">> ``` Because in this case both functions implemented in C. If you want to convert integer to the smallest possible binary representation you can use binary:encode_unsigned function from the new binary module like this: ``` 1> binary:encode_unsigned(543). <<2,31>> 2> binary:encode_unsigned(543, little). <<31,2>> ```

How do I convert an integer to a binary in Erlang?

Solution

Problem