gcc/testsuite/gfortran.dg/real_const_3.f90

   1 !{ dg-do run }
   2 !{ dg-options "-fno-range-check" }
   3 !{ dg-options "-fno-range-check -mieee" { target sh*-*-* } }
   4 ! PR19310 and PR19904, allow disabling range check during compile.
   5 ! Contributed by Jerry DeLisle  <jvdelisle@gcc.gnu.org>
   6 program main
   7   character(len=80) str
   8   real, parameter :: zero=0, nan=0/zero
   9   complex :: z = (-0.1,-2.2)/(0.0,0.0)
  10   complex :: z2 = (0.1,1)/0
  11   complex :: z3 = (1e35, -2e3)/1.234e-37
  12   complex :: z4 = (1e-35, -2e-35)/1234e34
  13   real :: a
  14   a = exp(1000.0)
  15   b = 1/exp(1000.0)
  16
  17   write(str,*) a
  18   if (trim(adjustl(str)) .ne. '+Infinity') call abort
  19
  20   if (b .ne. 0.) call abort
  21
  22   write(str,*) -1.0/b
  23   if (trim(adjustl(str)) .ne. '-Infinity') call abort
  24
  25   write(str,*) b/0.0
  26   if (trim(adjustl(str)) .ne. 'NaN') call abort
  27
  28   write(str,*) 0.0/0.0
  29   if (trim(adjustl(str)) .ne. 'NaN') call abort
  30
  31   write(str,*) 1.0/(-0.)
  32   if (trim(adjustl(str)) .ne. '-Infinity') call abort
  33
  34   write(str,*) -2.0/0.
  35   if (trim(adjustl(str)) .ne. '-Infinity') call abort
  36
  37   write(str,*) 3.0/0.
  38   if (trim(adjustl(str)) .ne. '+Infinity') call abort
  39
  40   write(str,*)  nan
  41   if (trim(adjustl(str)) .ne. 'NaN') call abort
  42
  43   write(str,*) z
  44   if (trim(adjustl(str)) .ne. '(            NaN,            NaN)') call abort
  45
  46   write(str,*) z2
  47   if (trim(adjustl(str)) .ne. '(            NaN,            NaN)') call abort
  48
  49   write(str,*) z3
  50   if (trim(adjustl(str)) .ne. '(      +Infinity,      -Infinity)') call abort
  51
  52   write(str,*) z4
  53   if (trim(adjustl(str)) .ne. '(  0.0000000    , -0.0000000    )') call abort
  54
  55 end program main