Simple implementation of & bitwise operator

c_bitwise.c

/*
 * Simple implementation of & bitwise operator
*/

#include <stdio.h>

#define TUNA_A 1
#define TUNA_B 2
#define TUNA_C 4
#define TUNA_D 8

void main(){
  int test1 = 3;
  int test2 = 7;
  int test3 = 8;
  int test4 = 12;
  
  if(test3 & TUNA_A){
    printf("TUNA_A\n");
  }
  
  if(test1 & TUNA_B){
    printf("TUNA_B\n");
  }
  
  if(test1 & TUNA_C){
    printf("TUNA_C\n");
  }
  
  if(test3 & TUNA_D){
    printf("test1 TUNA_D\n");
  }

}