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! Copyright 2021-2025 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/>.
#define DO_TEST(ARRAY) \
call do_test (lbound (ARRAY), ubound (ARRAY))
subroutine do_test (lb, ub)
integer*4, dimension (:) :: lb
integer*4, dimension (:) :: ub
print *, "" ! Test Breakpoint
end subroutine do_test
!
! Start of test program.
!
program test
use ISO_C_BINDING, only: C_NULL_PTR, C_SIZEOF
interface
subroutine do_test (lb, ub)
integer*4, dimension (:) :: lb
integer*4, dimension (:) :: ub
end subroutine do_test
end interface
! Declare variables used in this test.
integer, dimension (-8:-1,-10:-2) :: neg_array
integer, dimension (2:10,1:9), target :: array
integer, allocatable :: other (:, :)
character (len=26) :: str_1 = "abcdefghijklmnopqrstuvwxyz"
integer, dimension (-2:2,-3:3,-1:5) :: array3d
integer, dimension (-3:3,7:10,-4:2,-10:-7) :: array4d
integer, dimension (10:20) :: array1d
integer, dimension(:,:), pointer :: pointer2d => null()
integer, dimension(-2:6,-1:9), target :: tarray
integer :: an_int
integer, dimension (:), pointer :: pointer1d => null()
integer, parameter :: b1 = 127 - 10
integer, parameter :: b1_o = 127 + 2
integer, parameter :: b2 = 32767 - 10
integer, parameter :: b2_o = 32767 + 3
! This tests the GDB overflow behavior when using a KIND parameter too small
! to hold the actual output argument. This is done for 1, 2, and 4 byte
! overflow. On 32-bit machines most compilers will complain when trying to
! allocate an array with ranges outside the 4 byte integer range.
! We take the byte size of a C pointer as indication as to whether or not we
! are on a 32 bit machine an skip the 4 byte overflow tests in that case.
integer, parameter :: bytes_c_ptr = C_SIZEOF(C_NULL_PTR)
integer*8, parameter :: max_signed_4byte_int = 2147483647
integer*8, parameter :: b4 = max_signed_4byte_int - 10
integer*8 :: b4_o
logical :: is_64_bit
integer, allocatable :: array_1d_1bytes_overflow (:)
integer, allocatable :: array_1d_2bytes_overflow (:)
integer, allocatable :: array_1d_4bytes_overflow (:)
integer, allocatable :: array_2d_1byte_overflow (:,:)
integer, allocatable :: array_2d_2bytes_overflow (:,:)
integer, allocatable :: array_3d_1byte_overflow (:,:,:)
! Set the 4 byte overflow only on 64 bit machines.
if (bytes_c_ptr < 8) then
b4_o = 0
is_64_bit = .FALSE.
else
b4_o = max_signed_4byte_int + 5
is_64_bit = .TRUE.
end if
! Allocate or associate any variables as needed.
allocate (other (-5:4, -2:7))
pointer2d => tarray
pointer1d => array (3, 2:5)
allocate (array_1d_1bytes_overflow (-b1_o:-b1))
allocate (array_1d_2bytes_overflow (b2:b2_o))
if (is_64_bit) then
allocate (array_1d_4bytes_overflow (-b4_o:-b4))
end if
allocate (array_2d_1byte_overflow (-b1_o:-b1,b1:b1_o))
allocate (array_2d_2bytes_overflow (b2:b2_o,-b2_o:b2))
allocate (array_3d_1byte_overflow (-b1_o:-b1,b1:b1_o,-b1_o:-b1))
DO_TEST (neg_array)
DO_TEST (neg_array (-7:-3,-5:-4))
DO_TEST (array)
! The following is disabled due to a bug in gfortran:
! https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99027
! gfortran generates the incorrect expected results.
! DO_TEST (array (3, 2:5))
DO_TEST (pointer1d)
DO_TEST (other)
DO_TEST (array3d)
DO_TEST (array4d)
DO_TEST (array1d)
DO_TEST (pointer2d)
DO_TEST (tarray)
DO_TEST (array_1d_1bytes_overflow)
DO_TEST (array_1d_2bytes_overflow)
if (is_64_bit) then
DO_TEST (array_1d_4bytes_overflow)
end if
DO_TEST (array_2d_1byte_overflow)
DO_TEST (array_2d_2bytes_overflow)
DO_TEST (array_3d_1byte_overflow)
! All done. Deallocate.
print *, "" ! Breakpoint before deallocate.
deallocate (other)
deallocate (array_3d_1byte_overflow)
deallocate (array_2d_2bytes_overflow)
deallocate (array_2d_1byte_overflow)
if (is_64_bit) then
deallocate (array_1d_4bytes_overflow)
end if
deallocate (array_1d_2bytes_overflow)
deallocate (array_1d_1bytes_overflow)
! GDB catches this final breakpoint to indicate the end of the test.
print *, "" ! Final Breakpoint.
! Reference otherwise unused locals in order to keep them around.
! GDB will make use of these for some tests.
print *, str_1
an_int = 1
print *, an_int
end program test
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