zero?(p1)
  public
  
    
    
Returns true if the named file exists and has a zero size.
file_name can be an IO object.
   
  
    Show source    
    
      static VALUE
rb_file_zero_p(VALUE obj, VALUE fname)
{
    struct stat st;
    if (rb_stat(fname, &st) < 0) return Qfalse;
    if (st.st_size == 0) return Qtrue;
    return Qfalse;
}