base64 encoding using the new binary syntax

[Sean Hinde]

Some more observations:

If in the shell you do:

74> A=lists:duplicate(40000,3).                         
[3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3|...]
75> B=list_to_binary(A).                                
<<3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3|... 40000
bytes>>
76> <<B/binary,B/binary>>.
<<3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3|... 80000
bytes>>
77> A++A.
[3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3|...]

<<B/binary,B/binary>> visibly takes ages but A++A. returns immediately!

Also:

79> io:format("~p",[<<B/binary>>]). 
<<3>>ok

OR

80> io:format("~p",[B]).  
<<3>>ok

doesn't look very correct.

Sean



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