File: char_pack_2.f90

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gcc-arm-none-eabi 15%3A12.2.rel1-1
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! Test scalar pack for character arrays.
! { dg-do run }
program main
  implicit none
  integer, parameter :: n1 = 3, n2 = 4, nv = 16, slen = 9
  character (len = slen), dimension (n1, n2) :: a
  character (len = slen), dimension (nv) :: vector
  logical :: mask
  integer :: i1, i2, i

  do i2 = 1, n2
    do i1 = 1, n1
      a (i1, i2) = 'abc'(i1:i1) // 'defg'(i2:i2) // 'cantrip'
    end do
  end do

  do i = 1, nv
    vector (i) = 'crespo' // '0123456789abcdef'(i:i)
  end do

  mask = .true.
  call test1 (pack (a, mask))
  call test2 (pack (a, mask, vector))
contains
  subroutine test1 (b)
    character (len = slen), dimension (:) :: b

    i = 0
    do i2 = 1, n2
      do i1 = 1, n1
        i = i + 1
        if (b (i) .ne. a (i1, i2)) STOP 1
      end do
    end do
    if (size (b, 1) .ne. i) STOP 2
  end subroutine test1

  subroutine test2 (b)
    character (len = slen), dimension (:) :: b

    if (size (b, 1) .ne. nv) STOP 3
    i = 0
    do i2 = 1, n2
      do i1 = 1, n1
        i = i + 1
        if (b (i) .ne. a (i1, i2)) STOP 4
      end do
    end do
    do i = i + 1, nv
      if (b (i) .ne. vector (i)) STOP 5
    end do
  end subroutine test2
end program main