gcc/testsuite/gfortran.dg/edit_real_1.f90

   1 ! { dg-do run }
   2 ! Check real value edit descriptors
   3 ! Also checks that rounding is performed correctly
   4 program edit_real_1
   5   character(len=20) s
   6   character(len=20) x
   7   character(len=200) t
   8   parameter (x = "xxxxxxxxxxxxxxxxxxxx")
   9
  10   ! W append a "z" onto each test to check the field is the correct width
  11   s = x
  12   ! G -> F format
  13   write (s, '(G10.3,A)') 12.36, "z"
  14   if (s .ne. "  12.4    z") call abort
  15   s = x
  16   ! G -> E format
  17   write (s, '(G10.3,A)') -0.0012346, "z"
  18   if (s .ne. "-0.123E-02z") call abort
  19   s = x
  20   ! Gw.eEe format
  21   write (s, '(G10.3e1,a)') 12.34, "z"
  22   if (s .ne. "   12.3   z") call abort
  23   ! E format with excessive precision
  24   write (t, '(E199.192,A)') 1.5, "z"
  25   if ((t(1:7) .ne. " 0.1500") .or. (t(194:200) .ne. "00E+01z")) call abort
  26   ! EN format
  27   s = x
  28   write (s, '(EN15.3,A)') 12873.6, "z"
  29   if (s .ne. "     12.874E+03z") call abort
  30   ! EN format, negative exponent
  31   s = x
  32   write (s, '(EN15.3,A)') 12.345e-6, "z"
  33   if (s .ne. "     12.345E-06z") call abort
  34   ! ES format
  35   s = x
  36   write (s, '(ES10.3,A)') 16.235, "z"
  37   if (s .ne. " 1.624E+01z") call abort
  38   ! F format, small number
  39   s = x
  40   write (s, '(F10.8,A)') 1.0e-20, "z"
  41   if (s .ne. "0.00000000z") call abort
  42   ! E format, very large number.
  43   ! Used to overflow with positive scale factor
  44   s = x
  45   write (s, '(1PE10.3,A)') huge(0d0), "z"
  46   ! The actual value is target specific, so just do a basic check
  47   if ((s(1:1) .eq. "*") .or. (s(7:7) .ne. "+") .or. &
  48       (s(11:11) .ne. "z")) call abort
  49   ! F format, round up with carry to most significant digit.
  50   s = x
  51   write (s, '(F10.3,A)') 0.9999, "z"
  52   if (s .ne. "     1.000z") call abort
  53   ! F format, round up with carry to most significant digit < 0.1.
  54   s = x
  55   write (s, '(F10.3,A)') 0.0099, "z"
  56   if (s .ne. "     0.010z") call abort
  57   ! E format, round up with carry to most significant digit.
  58   s = x
  59   write (s, '(E10.3,A)') 0.9999, "z"
  60   if (s .ne. " 0.100E+01z") call abort
  61   ! EN format, round up with carry to most significant digit.
  62   s = x
  63   write (s, '(EN15.3,A)') 999.9999, "z"
  64   if (s .ne. "      1.000E+03z") call abort
  65   ! E format, positive scale factor
  66   s = x
  67   write (s, '(2PE10.4,A)') 1.2345, "z"
  68   if (s .ne. '12.345E-01z') call abort
  69   ! E format, negative scale factor
  70   s = x
  71   write (s, '(-2PE10.4,A)') 1.250001, "z"
  72   if (s .ne. '0.0013E+03z') call abort
  73   ! E format, single digit precision
  74   s = x
  75   write (s, '(E10.1,A)') 1.1, "z"
  76   if (s .ne. '   0.1E+01z') call abort
  77 end
  78