void main_file_init ( main_file * xfile ) {
 memset ( xfile , 0 , sizeof ( * xfile ) ) ;
 # if XD3_POSIX xfile -> file = - 1 ;
 # endif # if XD3_WIN32 xfile -> file = INVALID_HANDLE_VALUE ;
 # endif }
void main_file_init ( main_file * xfile ) {
 memset ( xfile , 0 , sizeof ( * xfile ) ) ;
 # if XD3_POSIX xfile -> file = - 1 ;
 # endif # if XD3_WIN32 xfile -> file = INVALID_HANDLE_VALUE ;
 # endif }