gcc/testsuite/gfortran.dg/large_integer_kind_1.f90

   1 ! { dg-do run }
   2 ! { dg-require-effective-target fortran_large_int }
   3
   4 module testmod
   5   integer,parameter :: k = selected_int_kind (range (0_8) + 1)
   6 contains
   7   subroutine testoutput (a,b,length,f)
   8     integer(kind=k),intent(in) :: a
   9     integer(kind=8),intent(in) ::  b
  10     integer,intent(in) :: length
  11     character(len=*),intent(in) :: f
  12
  13     character(len=length) :: ca
  14     character(len=length) :: cb
  15
  16     write (ca,f) a
  17     write (cb,f) b
  18     if (ca /= cb) call abort
  19   end subroutine testoutput
  20 end module testmod
  21
  22
  23 ! Testing I/O of large integer kinds (larger than kind=8)
  24 program test
  25   use testmod
  26   implicit none
  27
  28   integer(kind=k) :: x
  29   character(len=50) :: c1, c2
  30
  31   call testoutput (0_k,0_8,50,'(I50)')
  32   call testoutput (1_k,1_8,50,'(I50)')
  33   call testoutput (-1_k,-1_8,50,'(I50)')
  34   x = huge(0_8)
  35   call testoutput (x,huge(0_8),50,'(I50)')
  36   x = -huge(0_8)
  37   call testoutput (x,-huge(0_8),50,'(I50)')
  38 end program test