Explain the following C++ method

Question

#define XL     33           
#define OR      113          
#define NOR     313     
#define TN     344  

int to_bits(int critn,char *mask)
{
       unsigned int x;
             


        

Answer 1

>> is right shift operator.

for e.g 8 > 3 will give you 1, right shift binary value of 8 by 3 places

1000(binary of 8) right shift by 3 places = 0001 (1 in decimal)