//Use | to set a specific bit
#include  <stdio.h>


#define BYTE_SIZE 8

int main(void){                  //       X     
    unsigned int x = 5;          //0000 0101     |
    unsigned int mask = 2;       //0000 0010
                                 //---------
                                 //0000 0111  7
                                
    unsigned int result = x | mask;
    printf("%u\n",result);
    
    
    return 0;
}

/*
0 | 0 = 0
0 | 1 = 1
1 | 0 = 1
1 | 1 = 1

*/