Bitwise operations in BC?

$ bc
BC> ibase=2
BC> 110&101                     // wanna get 100
(standar_in) 8: syntax error

Wikipedia informs that the ops are "|, & and ^". It may be that they work only in certain BC-types or I misread some开发者_运维百科thing.

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Those operators are listed in the section 'Missing' operators relative to C, which ends with "... are not available in POSIX bc"

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Despite bc won't do it, you can use arithmetic expansion directly on the terminal if you use bash.

To XOR 44 and 61, you can do:

echo $((44^61))

If you want to use binary code, then:

echo $((2#110^2#101))

See Numerical Constants for changing the base.

See bitwise operators section to peep at available operators.

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The wikipedia article is pretty clear that these ops aren't in either POSIX bc or gnu bc. The man page has no mention of them either.