[erlang-bugs] bug in erlang:size
Sat Aug 4 08:29:21 CEST 2012
On 08/03/2012 11:12 AM, Joe Armstrong wrote:
> I think this is a bug:
> 1> B =<<1:17>>.
> 2> size(B).
> B is not a binary or tuple to size(B) should give badarg
There is indeed something fishy in the above...
But IMO, size/1 is one of these functions that should be considered
deprecated and only kept for backwards compatibility. These days there
exist built-in functions tuple_size/1, byte_size/1, and bit_size/1 that
are unambiguous and more type-friendly.
I would urge Joe to avoid mentioning the existence of size/1 in the new
edition of his book.
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