bitwise operators in c with negative numbers
Can bitwise operators be used with negative numbers in C?
In this article, we’ll explore how bitwise operators can be used with negative numbers in the C programming language. INegative numbers are typically represented in computers using the two’s complement representation. In this arrangement, the sign of the number is indicated by the highest-value bit (the bit on the left).
What happens if a sign bit is applied to a negative number?
When applied to negative numbers, the sign bit remains intact while specific bits are modified. This can be particularly useful when implementing configuration settings or combining multiple attributes. Example: The bitwise XOR operator (^) conducts an exclusive OR operation between corresponding bits of two numbers.
How does a bitwise number work?
A bitwise or with a negative number works JUST like a bitwise or with a positive number. The bits in one number are ored with the bits in the other number. How your processor represents negative numbers is a different matter. Most use something called "two's complement", which is essentially "invert the number and add 1".
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Bitwise operators only work on a limited number of types: int and char This seems (if you're shifting K bits), but only for non-negative values of x For negative |
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