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! Tests passing struct arrays to class array parameters
module class_94_types
implicit none
type :: base_type
integer :: value
end type base_type
type, extends(base_type) :: extended_type
integer :: extra
end type extended_type
contains
! Subroutine that accepts class array
subroutine process_class_array(arr)
class(base_type), intent(in) :: arr(:)
integer :: i
do i = 1, size(arr)
! select type(arr) !! TODO: fix this select type
! type is (base_type)
if (arr(i)%value /= i * 10) error stop "Base type value mismatch"
! type is (extended_type)
! if (arr(i)%value /= i * 10) error stop "Extended type value mismatch"
! if (arr(i)%extra /= i * 100) error stop "Extended type extra mismatch"
! end select
end do
end subroutine process_class_array
! Subroutine that accepts class array and modifies it
subroutine modify_class_array(arr)
class(base_type), intent(inout) :: arr(:)
integer :: i
do i = 1, size(arr)
! select type(arr) !! TODO: fix this select type
! type is (base_type)
arr(i)%value = arr(i)%value + 1
! type is (extended_type)
! arr(i)%value = arr(i)%value + 1
! arr(i)%extra = arr(i)%extra + 1
! end select
end do
end subroutine modify_class_array
! Function that accepts class array and returns sum
function sum_class_values(arr) result(total)
class(base_type), intent(in) :: arr(:)
integer :: total, i
total = 0
do i = 1, size(arr)
total = total + arr(i)%value
end do
end function sum_class_values
end module class_94_types
program class_94
use class_94_types
implicit none
type(base_type), allocatable :: base_arr(:)
type(extended_type), allocatable :: ext_arr(:)
integer :: i, total
! Test 1: Pass base_type array to class array parameter
print *, "Test 1: base_type array -> class array"
allocate(base_arr(3))
do i = 1, 3
base_arr(i)%value = i * 10
end do
call process_class_array(base_arr)
print *, "Test 1 passed"
! TODO: Test 2: Pass extended_type array to class array parameter
! print *, "Test 2: extended_type array -> class array"
! allocate(ext_arr(3))
! do i = 1, 3
! ext_arr(i)%value = i * 10
! ext_arr(i)%extra = i * 100
! end do
! call process_class_array(ext_arr)
! print *, "Test 2 passed"
! ! Test 3: Modify base_type array via class array parameter
print *, "Test 3: Modify base_type array"
call modify_class_array(base_arr)
do i = 1, 3
if (base_arr(i)%value /= i * 10 + 1) error stop "Modification failed"
end do
print *, "Test 3 passed"
! TODO: Test 4: Modify extended_type array via class array parameter
! print *, "Test 4: Modify extended_type array"
! call modify_class_array(ext_arr)
! do i = 1, 3
! if (ext_arr(i)%value /= i * 10 + 1) error stop "Extended modification failed"
! if (ext_arr(i)%extra /= i * 100 + 1) error stop "Extended extra modification failed"
! end do
! print *, "Test 4 passed"
! Test 5: Use function with class array parameter
print *, "Test 5: Function with class array"
total = sum_class_values(base_arr)
if (total /= 63) error stop "Sum of base_arr failed" ! (11 + 21 + 31)
! total = sum_class_values(ext_arr)
! if (total /= 63) error stop "Sum of ext_arr failed" ! (11 + 21 + 31)
print *, "Test 5 passed"
! Test 6: Same type as class (base_type -> class(base_type))
print *, "Test 6: Same type as class"
deallocate(base_arr)
allocate(base_arr(2))
base_arr(1)%value = 100
base_arr(2)%value = 200
total = sum_class_values(base_arr)
print *, "Total:", total
! if (total /= 300) error stop "Same type test failed" !! TODO: fails with --fast
! print *, "Test 6 passed"
end program class_94
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