Bit circular shift
I am currently learning on bit-wise operations, and i am tasked to do a left rotate of 4-bit integer. My code for a 4bit left rotate is private static int BITS_IN_INTEGER = 4; private static int …
Tag: bitwise-operators
Using & (bitwise AND operator) in Angular ng-if expressions
I can’t get the & operator to work in an Angular ng-if expression (to use with some bit flags). Suppose we have some HTML like this:
If value …
What is the data type to store user inputted bitwise operator
I have implemented Data Encryption Standard(DES) to encrypt a plain text and get the cipher from it. Though the DES uses 56 bit key , 64 bit block size and 16 rounds, to start from a simple code. I …
Performance wise, how fast are Bitwise Operators vs. Normal Modulus?
Does using bitwise operations in normal flow or conditional statements like for, if, and so on increase overall performance and would it be better to use them where possible? For example: if(i++ &…
Java: right shift on negative number
I am very confused on right shift operation on negative number, here is the code. int n = -15; System.out.println(Integer.toBinaryString(n)); int mask = n >> 31; System.out.println(Integer….
Pipe character in Python
I see a “pipe” character (|) used in a function call: res = c1.create(go, come, swim, “”, startTime, endTime, “OK”, ax|bx) What is the meaning of the pipe in ax|bx?