bit set and clear example in c

c_set_and_clear_bit.c

#include "stdio.h"

#define ID_A  0x01
#define ID_B  0x02

int main() {
	unsigned char  type;
	unsigned short result;

	printf("size of unsigned char  = %x\n", sizeof(unsigned char) );
	printf("size of unsigned short = %x\n", sizeof(unsigned short) );

	result = ID_B;
	type   = ID_A;

	if ( type == ID_A )
	{
	  result |= ID_A;
	}
  
	printf("set result = %x\n", result );
  
	if ( result & ID_A )
	{
	  result &= ~(ID_A);
	}
	
	printf("clear result = %x\n", result );
	    
	return 0;
}