# Detect if two integers have opposite signs
# Արդյոք երկու ամբող թվերը նույն նշանն ունեն

```
bool oppositeSigns(int x, int y)
{
    return ((x ^ y) < 0);
}
```

# Detect if integer can be devided on 8
# Արդյոք ամբողջ թիվը բաժանվո՞ւմ է 8-ի

```
bool div8(int x)
{
    return ((x & 0x7) == 0);
}
```
 
# Turn off the rightmost set bit
```
int fun(unsigned int n)
{
    return n & (n - 1);
}
```

# Compute modulus division by a power-of-2-number
```
unsigned int getModulo(unsigned int n,
                       unsigned int d)
{
return ( n & (d - 1) );
}  
```

# Check for Integer Overflow
bool willOverflow(int a, int b) 
{ 
    int result = a + b; 
    if(a > 0 && b > 0 && result < 0) 
        return true; 
    if(a < 0 && b < 0 && result > 0) 
        return true; 
    return 0; 
}

# Count set bits in an integer
unsigned int countSetBits(unsigned int n)
{
    unsigned int count = 0;
    while (n) {
        count += n & 1;
        n >>= 1;
    }
    return count;
}