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! { dg-do run }

! { dg-additional-sources bind_c_vars_driver.c }

module bind_c_vars

  use, intrinsic :: iso_c_binding

  implicit none

  integer(c_int), bind(c) :: myF90Int

  real(c_float), bind(c, name="myF90Real") :: f90_real

  integer(c_int) :: c2

  integer(c_int) :: c3

  integer(c_int) :: c4

  bind(c, name="myVariable") :: c2

  bind(c) c3, c4

  integer(c_int), bind(c, name="myF90Array3D") :: A(18, 3:7, 10)

  integer(c_int), bind(c, name="myF90Array2D") :: B(3, 2)

contains

  subroutine changeF90Globals() bind(c, name='changeF90Globals')

    implicit none

    ! should make it 2

    myF90Int = myF90Int + 1

    ! should make it 3.0

    f90_real = f90_real * 3.0;

    ! should make it 4

    c2 = c2 * 2;

    ! should make it 6

    c3 = c3 + 3;

    ! should make it 2

    c4 = c4 / 2;

    ! should make it 2

    A(5, 6, 3) = A(5, 6, 3) + 1

    ! should make it 3

    B(3, 2) = B(3, 2) + 1

  end subroutine changeF90Globals

end module bind_c_vars

! { dg-final { cleanup-modules "bind_c_vars" } }