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! Test eoshift3 for character arrays.
! { dg-do run }
program main
implicit none
integer, parameter :: n1 = 2, n2 = 5, n3 = 4, slen = 3
character (len = slen), dimension (n1, n2, n3) :: a
character (len = slen), dimension (n1, n3) :: filler
integer (kind = 1), dimension (n1, n3) :: shift1
integer (kind = 2), dimension (n1, n3) :: shift2
integer (kind = 4), dimension (n1, n3) :: shift3
integer (kind = 8), dimension (n1, n3) :: shift4
integer :: i1, i2, i3
filler (1, :) = (/ 'tic', 'tac', 'toe', 'tip' /)
filler (2, :) = (/ 'zzz', 'yyy', 'xxx', 'www' /)
shift1 (1, :) = (/ 1, 3, 2, 2 /)
shift1 (2, :) = (/ 2, 1, 1, 3 /)
shift2 = shift1
shift3 = shift1
shift4 = shift1
do i3 = 1, n3
do i2 = 1, n2
do i1 = 1, n1
a (i1, i2, i3) = 'ab'(i1:i1) // 'cdefg'(i2:i2) // 'hijk'(i3:i3)
end do
end do
end do
call test (eoshift (a, shift1, filler, 2), .true.)
call test (eoshift (a, shift2, filler, 2), .true.)
call test (eoshift (a, shift3, filler, 2), .true.)
call test (eoshift (a, shift4, filler, 2), .true.)
call test (eoshift (a, shift1, dim = 2), .false.)
call test (eoshift (a, shift2, dim = 2), .false.)
call test (eoshift (a, shift3, dim = 2), .false.)
call test (eoshift (a, shift4, dim = 2), .false.)
contains
subroutine test (b, has_filler)
character (len = slen), dimension (n1, n2, n3) :: b
logical :: has_filler
integer :: i2p
do i3 = 1, n3
do i2 = 1, n2
do i1 = 1, n1
i2p = i2 + shift1 (i1, i3)
if (i2p .le. n2) then
if (b (i1, i2, i3) .ne. a (i1, i2p, i3)) call abort
else if (has_filler) then
if (b (i1, i2, i3) .ne. filler (i1, i3)) call abort
else
if (b (i1, i2, i3) .ne. '') call abort
end if
end do
end do
end do
end subroutine test
end program main
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