gcc/testsuite/gfortran.dg/bind_c_coms.f90

   1 ! { dg-do run }
   2 ! { dg-additional-sources bind_c_coms_driver.c }
   3 ! { dg-options "-w" }
   4 ! the -w option is to prevent the warning about long long ints
   5 module bind_c_coms
   6   use, intrinsic :: iso_c_binding
   7   implicit none
   8
   9   common /COM/ R, S
  10   real(c_double) :: r
  11   real(c_double) :: t
  12   real(c_double) :: s
  13   bind(c) :: /COM/, /SINGLE/, /MYCOM/
  14   common /SINGLE/ T
  15   common /MYCOM/ LONG_INTS
  16   integer(c_long) :: LONG_INTS
  17   common /MYCOM2/ LONG_LONG_INTS
  18   integer(c_long_long) :: long_long_ints
  19   bind(c) :: /mycom2/
  20
  21   common /com2/ i, j
  22   integer(c_int) :: i, j
  23   bind(c, name="f03_com2") /com2/
  24
  25   common /com3/ m, n
  26   integer(c_int) :: m, n
  27   bind(c, name="") /com3/
  28
  29 contains
  30   subroutine test_coms() bind(c)
  31     r = r + .1d0;
  32     s = s + .1d0;
  33     t = t + .1d0;
  34     long_ints = long_ints + 1
  35     long_long_ints = long_long_ints + 1
  36     i = i + 1
  37     j = j + 1
  38
  39     m = 1
  40     n = 1
  41   end subroutine test_coms
  42 end module bind_c_coms
  43
  44 module bind_c_coms_2
  45   use, intrinsic :: iso_c_binding, only: c_int
  46   common /com3/ m, n
  47   integer(c_int) :: m, n
  48   bind(c, name="") /com3/
  49 end module bind_c_coms_2