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0 pointsdmitrygr5d ago0 comments

Fun story: even the latest C spec doesn’t require CHAR_BIT == 8, but it does now codify 2s complement int representation. (IIRC)

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eru5d ago

For unsigned ints, or also for signed ints?

Two's complement is a representation specifically for signed integers.

For signed. Unsigned overflow was defined for a while now.

And unsigned negation is two's complement negation as well (-u = 0-u).

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eru5d ago

For unsigned ints, or also for signed ints?

Two's complement is a representation specifically for signed integers.

For signed. Unsigned overflow was defined for a while now.

And unsigned negation is two's complement negation as well (-u = 0-u).

j / k navigate · click thread line to collapse