binary constructor

Richard Carlsson <>
Mon Feb 28 12:37:19 CET 2005


Mats Cronqvist wrote:
>   well, according to timer:tc/3;
> 
> <<list_to_binary(As)/binary,list_to_binary(Bs)/binary>>
> 
>   is (marginally) faster than;
> 
> list_to_binary([As,Bs])

Bizarre! I can't see how that is possible, except perhaps
for lists of length =< 4. The first version needs to
traverse the data twice to form the final binary.

	/Richard



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