Assuming two's complement:
Whenever you OR any number with a negative number the result is negative. This is because the sign bit is set in the negative number and therefor will be set in the resulting number.
문제
So what happens when you OR two negative numbers? Is it ever guaranteed that whenever you OR a positive with a negative, the result will be positive?
해결책
Assuming two's complement:
Whenever you OR any number with a negative number the result is negative. This is because the sign bit is set in the negative number and therefor will be set in the resulting number.