Meaning of ~0

Discussion in 'C++' started by Old Wolf, Feb 2, 2014.

  1. Old Wolf

    Old Wolf Guest

    I'm sure this would have been asked before, but Google can't
    cope with searching for tilde, so...

    What does ~0 evaluate to?

    N2521 just says "The operand of ~ shall have integral or
    enumeration type; the result is the one's complement of
    its operand." without any further explanation.

    Does it mean the value whose representation is all-bits-1 ?
    What if this is a trap representation?
    Old Wolf, Feb 2, 2014
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