|  | ! Copyright 2017-2023 Free Software Foundation, Inc. | 
|  | ! | 
|  | ! This program is free software; you can redistribute it and/or modify | 
|  | ! it under the terms of the GNU General Public License as published by | 
|  | ! the Free Software Foundation; either version 3 of the License, or | 
|  | ! (at your option) any later version. | 
|  | ! | 
|  | ! This program is distributed in the hope that it will be useful, | 
|  | ! but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | ! GNU General Public License for more details. | 
|  | ! | 
|  | ! You should have received a copy of the GNU General Public License | 
|  | ! along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
|  |  | 
|  | program main | 
|  | implicit none | 
|  |  | 
|  | type tuserdef | 
|  | integer :: i | 
|  | real, pointer :: ptr | 
|  | end type tuserdef | 
|  | real, target :: rval | 
|  |  | 
|  | type(tuserdef), target:: tinsta,tinstb,tinstc | 
|  |  | 
|  | tinsta%i = 4 | 
|  | tinsta%ptr => rval                        !BP1 | 
|  |  | 
|  | end program main |