Bitwise Math

Command line calculator program written without arithmetic operators

How to Use

• Note: This project does not have any shipped releases yet
• Note: No support on Windows
• Use GNU Make to build: make
• Start Program: make run
• The program takes in two numbers and runs multiple arithmetic operations

Developer Build Instructions

• Note: Build System requires GNU Make
• Note: No support on Windows
• Normal build: make
• Manual Test: make run
• Clean Environment: make clean

Bitwise Cheat sheet

C bitwise examples

int x = 4;    // initialize x
x |= 1;       // Set the 0th bit
x |= 1 << 4;  // Set the 4th bit
x ^= 1 << 4;  // Flip the 4th bit
x &= 1 << 5;  // Get the 5th bit
x  =   ~(x);  // Flip all bits

C bitwise operators

| == Binary OR

^ == Binary XOR

& == Binary AND

~ == One's Complement / Flip 0s to 1s, and 1s to 0s

<< == Left Shift operator

>> == Right Shift operator

Binary math

0110 + 0111 = 1101

6 + 7 = 13

Getting, Setting, and Flipping Bits

Getting (AND)

0 & 0 == 0

0 & 1 == 0

1 & 0 == 0

1 & 1 == 1

Setting (OR)

0 | 0 == 0

0 | 1 == 1

1 | 0 == 1

1 | 1 == 1

Flipping (XOR)

0 ^ 0 == 0

0 ^ 1 == 1

1 ^ 0 == 1

1 ^ 1 == 0