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uuid v4 in erlang
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| uuid() -> | |
| <<A:32, B:16, C:16, D:16, E:48>> = crypto:rand_bytes(16), | |
| Fmt = "~8.16.0b-~4.16.0b-4~3.16.0b-~4.16.0b-~12.16.0b", | |
| Str = io_lib:format(Fmt, [A, B, C band 16#0fff, D band 16#3fff bor 16#8000, E]), | |
| list_to_binary(Str). |
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