gcc/testsuite/gfortran.dg/large_real_kind_form_io_2.f90

   1 ! { dg-do run { xfail powerpc*-apple-darwin* powerpc*-*-linux* } }
   2 ! Test XFAILed on these platforms because the system's printf() lacks
   3 ! proper support for denormalized long doubles. See PR24685
   4 ! { dg-require-effective-target fortran_large_real }
   5 ! PR libfortran/24685
   6 program large_real_kind_form_io_2
   7   ! This should be 10 or 16 on systems that support kind=10 or kind=16
   8   integer, parameter :: k = selected_real_kind (precision (0.0_8) + 1)
   9   real(kind=k) :: a,b(2), c
  10   character(len=180) :: tmp
  11
  12   b(:) = huge(0.0_k)
  13   write (tmp, *) b
  14   read (tmp, *) a, c
  15   if (a /= b(1)) STOP 1
  16   if (c /= b(2)) STOP 2
  17
  18   b(:) = -huge(0.0_k)
  19   write (tmp, *) b
  20   read (tmp, *) a, c
  21   if (a /= b(1)) STOP 3
  22   if (c /= b(2)) STOP 4
  23
  24   b(:) = nearest(tiny(0.0_k),1.0_k)
  25   write (tmp, *) b
  26   read (tmp, *) a, c
  27   if (a /= b(1)) STOP 5
  28   if (c /= b(2)) STOP 6
  29
  30   b(:) = nearest(-tiny(0.0_k),-1.0_k)
  31   write (tmp, *) b
  32   read (tmp, *) a, c
  33   if (a /= b(1)) STOP 7
  34   if (c /= b(2)) STOP 8
  35 end program large_real_kind_form_io_2