// show how the sizeof operator works
char var_1 = 1; 
int16_t var_2 = 2;
int32_t var_3 = 3;
void* var_4;  // this is an address

void setup() {
  Serial.begin(9600);  
  Serial.println("Mem03");
  
  // print out its address, which is 16 bits unsigned 
  Serial.print( (uint16_t) &var_1, HEX); 
  Serial.print( " " );
  Serial.println( sizeof(var_1), HEX);
  
  Serial.print( (uint16_t) &var_2, HEX);
  Serial.print( " " );
  Serial.println( sizeof(var_2), HEX);

  Serial.print( (uint16_t) &var_3, HEX);
  Serial.print( " " );
  Serial.println( sizeof(var_3), HEX);

  Serial.print( (uint16_t) &var_4, HEX);
  Serial.print( " " );
  Serial.println( sizeof(var_4), HEX);
}

void loop() {
}