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Bookmark or Share- Real world use cases of bitwise operators - Stack Overflow6. Bitwise operators are useful for looping arrays which length is power of 2. As many people mentioned, bitwise operators are extremely useful and are used in Flags, Graphics, Networking, Encryption. Not only that, but they are extremely fast. My personal favorite use is to loop an array without conditionals.
- Bitwise and in place of modulus operator - Stack OverflowWith regards to bitwise optimization, only modulo powers of two can "easily" be done in bitwise arithmetics. Generally speaking, only modulo powers of base b can "easily" be done with base b representation of numbers. In base 10, for example, for non-negative N, N mod 10^k is just taking the least significant k digits. References
- How do I check if an integer is even or odd using bitwise operatorsThe way you look at that bit is by using the AND operator of your language. In C and many other languages syntactically derived from B (yes, B), that operator is &. In BASICs, it's usually And. You take your integer, AND it with 1 (which is a number with only the lowest-order bit set), and if the result is not equal to 0, the bit was set.
- What are bitwise shift (bit-shift) operators and how do they work?The Bitwise operators are used to perform operations a bit-level or to manipulate bits in different ways. The bitwise operations are found to be much faster and are some times used to improve the efficiency of a program. Basically, Bitwise operators can be applied to the integer types: long, int, short, char and byte. Bitwise Shift Operators
- Explanation of Bitwise NOT Operator - Stack OverflowFirst of all, as you know, negative numbers are expressed as (highest possible unsigned number plus 1 minus value). So -1 in a 16-bit integer, which has the highest unsigned value of 65535, would be 65536-1=65535, i.e. 0xffff in hex, or 1111 1111 1111 1111 in binary. So: 1 in binary = 0000 0000 0000 0001. NOT on all bits would result in 1111 ...
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