Why compiler does 2's complement in the bitwise NOT operation?
example :
~5 = -6
~5 = 1010 which is actually 10 in decimal
but compiler takes 2's complement of 1010 which will be -6.
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JaMiT
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Hanish gopi
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Because there's more than four bits. The higher bits are also not-ed. – Dave Newton Oct 12 '21 at 20:20
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2~ is the 1's complement operator, simply all the bits inverted. Including the sign bit. – Hans Passant Oct 12 '21 at 20:21
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3With a 4 bits signed integer type using 2's complement representation, 1010 is -6. – nielsen Oct 12 '21 at 20:22
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Because `5` is an `int` (which is signed and uses 2's complement). Maybe you want `~5u`? – HolyBlackCat Oct 12 '21 at 20:23
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7You forgot about the other 28 bits (assuming 32 bit int). `~5` isn't `1010` in binary it's `11111111111111111111111111111010` – Kevin Oct 12 '21 at 20:23