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! { dg-do run }
!
! Basic tests of SELECT RANK
!
! Contributed by Paul Thomas <pault@gcc.gnu.org>
!
implicit none
type mytype
real :: r
end type
type, extends(mytype) :: thytype
integer :: i
end type
! Torture using integers
ints: block
integer, dimension(2,2) :: y = reshape ([1,2,3,4],[2,2])
integer, dimension(4) :: z = [1,2,3,4]
integer, dimension(2,2,2) :: q = reshape ([11,12,13,14,15,16,17,18],[2,2,2])
integer :: i = 42
call ifoo(y, "y")
if (any (y .ne. reshape ([10,11,12,13], [2,2]))) stop 1
call ifoo(z, "z")
call ifoo(i, "i")
call ifoo(q, "q")
if (any (q .ne. reshape ([11,12,10,11,15,16,12,13], [2,2,2]))) stop 2
call ibar(y)
end block ints
! Check derived types
types: block
integer :: i
type(mytype), allocatable, dimension(:,:) :: t
type(mytype), allocatable :: u
allocate (t, source = reshape ([(mytype(real(i)), i = 1,4)],[2,2]))
call tfoo(t, "t")
if (any (size (t) .ne. [1,1])) stop 3 ! 't' has been reallocated!
if (abs (t(1,1)%r - 42.0) .ge. 1e-6) stop 4
allocate (u, source = mytype(42.0))
call tfoo(u, "u")
end block types
! Check classes
classes: block
integer :: i
class(mytype), allocatable, dimension(:,:) :: v
class(mytype), allocatable :: w
allocate (v, source = reshape ([(mytype(real(i)), i = 1,4)],[2,2]))
call cfoo(v, "v")
select type (v)
type is (mytype)
stop 5
type is (thytype)
if (any (ubound (v) .ne. [3,3])) stop 6
if (any (abs (v%r - 99.0) .ge. 1e-6)) stop 7
if (any (v%i .ne. 42)) stop 8
end select
allocate (w, source = thytype(42.0, 99))
call cfoo(w, "w")
end block classes
! Check unlimited polymorphic.
unlimited: block
integer(4) :: i
class(*), allocatable, dimension(:,:,:) :: v
allocate (v, source = reshape ([(i, i = 1,8)],[2,2,2]))
call ufoo(v, "v")
select type (v)
type is (integer(4))
stop 9
type is (real(4))
if (any (ubound(v) .ne. [2,2,1])) stop 10
if (abs (sum (v) - 10.0) .gt. 1e-6) stop 11
end select
end block unlimited
contains
recursive subroutine ifoo(w, chr)
integer, dimension(..) :: w
character(1) :: chr
OUTER: select rank (x => w)
rank (2)
if ((chr .eq. 'y') .and. (any (x(1,:) .ne. [1,3]))) stop 12
if ((chr .eq. 'r') .and. (any (x(1,:) .ne. [13,17]))) stop 13
x = reshape ([10,11,12,13], [2,2])
rank (0)
if ((chr .eq. 'i') .and. (x .ne. 42)) stop 14
rank (*)
if ((chr .eq. 'w') .and. (any (x(1:4) .ne. [10,11,12,13]))) stop 15
rank default
if ((chr .eq. 'z') .and. (rank (x) .ne. 1)) stop 16
if ((chr .eq. 'q') .and. (rank (x) .ne. 3)) stop 17
INNER: select rank (x)
rank (1) INNER
if ((chr .eq. 'z') .and. (any (x(1:4) .ne. [1,2,3,4]))) stop 18
rank (3) INNER
! Pass a rank 2 section otherwise an infinite loop ensues.
call ifoo(x(:,2,:), 'r')
end select INNER
end select OUTER
end subroutine ifoo
subroutine ibar(x)
integer, dimension(*) :: x
call ifoo(x, "w")
end subroutine ibar
subroutine tfoo(w, chr)
type(mytype), dimension(..), allocatable :: w
character(1) :: chr
integer :: i
type(mytype), dimension(2,2) :: r
select rank (x => w)
rank (2)
if (chr .eq. 't') then
r = reshape ([(mytype(real(i)), i = 1,4)],[2,2])
if (any (abs (x%r - r%r) .gt. 1e-6)) stop 19
if (allocated (x)) deallocate (x)
allocate (x(1,1))
x(1,1) = mytype (42.0)
end if
rank default
if ((chr .eq. 'u') .and. (rank (x) .ne. 0)) stop 20
end select
end subroutine tfoo
subroutine cfoo(w, chr)
class(mytype), dimension(..), allocatable :: w
character(1) :: chr
integer :: i
type(mytype), dimension(2,2) :: r
select rank (c => w)
rank (2)
select type (c)
type is (mytype)
if (chr .eq. 'v') then
r = reshape ([(mytype(real(i)), i = 1,4)],[2,2])
if (any (abs (c%r - r%r) .gt. 1e-6)) stop 21
end if
class default
stop 22
end select
if (allocated (c)) deallocate (c)
allocate (c(3,3), source = thytype (99.0, 42))
rank default
if ((chr .eq. 'w') .and. (rank (c) .ne. 0)) stop 23
end select
end subroutine cfoo
subroutine ufoo(w, chr)
class(*), dimension(..), allocatable :: w
character(1) :: chr
integer :: i
select rank (c => w)
rank (3)
select type (c)
type is (integer(4))
if (chr .eq. 'v' .and. (sum (c) .ne. 36)) stop 24
class default
stop 25
end select
if (allocated (c)) deallocate(c)
allocate (c, source = reshape ([(real(i), i = 1,4)],[2,2,1]))
rank default
stop 26
end select
end subroutine ufoo
end
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