` 0 is equal to 1?

#1

` 0 is equal to 1 ?
then why -1 is being printed

#2

Only sentences (things with truth-values) can be negated, and 0 is not a sentence, it’s a numeral.
So ~0 != 1.

#3

means ~0 is -1 ?
but ~1 =0 ,so ~0 must be also equal to 0.

#4

You don’t get it. You can’t negate numerals. You can only negate sentences with truth-values. And integers are not sentences.

#5

then ~0 = ?
and how is -1 equal 1111… ?

#6

There isn’t any valid value for ~0 as it is a numeral and any other number as they are not a sentence with truth value.

#7

but i checked it ~0 , -1 is being printed .

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#8

It must be because the way C++ compiler are designed but I don’t know for sure. What I know is mathematically you can’t negate 0.