text: #define XFS_ERROR(e) xfs_error_trap(e)
  
  int xfs_error_trap(int e) {
  
    if (!e)
      return 0;
  
    return e;
  }
  
  
  int foo() {
    int error = 5;
    
    return XFS_ERROR(5);
  }
  
  int main() {
    int err = foo();
    return 0;
  }
  