the ifndef lines created by xcode

beginners
#1

If i create a new c++ class then xcode create’s the following:

  
#ifndef __sequancerTable__imageRayTracer__  
#define __sequancerTable__imageRayTracer__  
  
#include <iostream>  
  
#endif /* defined(__sequancerTable__imageRayTracer__) */

Can i delete them?

#2

Yes, you can replace them with the following:

#pragma once

They’re just something to keep your file from getting compiled mutliple times when the compiler finds it in multiple places.

#3

ok thanks :slight_smile: