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! Copyright 2024 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/>.
module data
use, intrinsic :: iso_c_binding, only : C_SIZE_T
implicit none
character, target :: char_v
character (len=3), target :: char_a
integer, target :: int_v
integer, target, dimension(:,:) :: int_2da (3,2)
real*4, target :: real_v
real*4, target :: real_a(4)
real*4, target, dimension (:), allocatable :: real_a_alloc
character, pointer :: char_v_p
character (len=3), pointer :: char_a_p
integer, pointer :: int_v_p
integer, pointer, dimension (:,:) :: int_2da_p
real*4, pointer :: real_v_p
real*4, pointer, dimension(:) :: real_a_p
real*4, dimension(:), pointer :: real_alloc_a_p
contains
subroutine test_sizeof (answer)
integer(C_SIZE_T) :: answer
print *, answer ! Test breakpoint
end subroutine test_sizeof
subroutine run_tests ()
call test_sizeof (sizeof (char_v))
call test_sizeof (sizeof (char_a))
call test_sizeof (sizeof (int_v))
call test_sizeof (sizeof (int_2da))
call test_sizeof (sizeof (real_v))
call test_sizeof (sizeof (real_a))
call test_sizeof (sizeof (real_a_alloc))
call test_sizeof (sizeof (char_v_p))
call test_sizeof (sizeof (char_a_p))
call test_sizeof (sizeof (int_v_p))
call test_sizeof (sizeof (int_2da_p))
call test_sizeof (sizeof (real_v_p))
call test_sizeof (sizeof (real_a_p))
call test_sizeof (sizeof (real_alloc_a_p))
end subroutine run_tests
end module data
program sizeof_tests
use iso_c_binding
use data
implicit none
allocate (real_a_alloc(5))
nullify (char_v_p)
nullify (char_a_p)
nullify (int_v_p)
nullify (int_2da_p)
nullify (real_v_p)
nullify (real_a_p)
nullify (real_alloc_a_p)
! Test nullified
call run_tests ()
char_v_p => char_v ! Past unassigned pointers
char_a_p => char_a
int_v_p => int_v
int_2da_p => int_2da
real_v_p => real_v
real_a_p => real_a
real_alloc_a_p => real_a_alloc
! Test pointer assignment
call run_tests ()
char_v = 'a'
char_a = "aaa"
int_v = 10
int_2da = reshape((/1, 2, 3, 4, 5, 6/), shape(int_2da))
real_v = 123.123
real_a_p = (/-1.1, -1.2, -1.3, -1.4/)
real_a_alloc = (/1.1, 2.2, 3.3, 4.4, 5.5/)
! After allocate/value assignment
call run_tests ()
deallocate (real_a_alloc)
print *, "done" ! Final breakpoint
end program sizeof_tests
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