Bit manipulation is essential for performance in C++. You can efficiently store and process data using bits. Common operations include setting, clearing, and toggling bits. Here’s a simple example:
“`cpp
#include
using namespace std;
int main() {
int num = 0;
num |= (1 << 2); // Set the 3rd bit
num &= ~(1 << 1); // Clear the 2nd bit
cout << num; // Outputs 4
return 0;
}
```
In this code, bitwise operations manipulate specific bits. Mastering these techniques is vital for system-level programming.