gcc/testsuite/gfortran.dg/io_constraints_2.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-std=f95" }
   3 ! Part II of the test  of the IO constraints patch, which fixes PRs:
   4 ! PRs 25053, 25063, 25064, 25066, 25067, 25068, 25069, 25307 and 20862.
   5 ! Modified2006-07-08 to check the patch for PR20844.
   6 !
   7 ! Contributed by Paul Thomas  <pault@gcc.gnu.org>
   8 !
   9
  10 module global
  11
  12   integer :: modvar
  13   namelist /NL/ modvar
  14
  15 contains
  16
  17   subroutine foo (i)
  18     integer :: i
  19     write (*, 100) i
  20  100 format (1h , "i=", i6) ! { dg-warning "H format specifier" }
  21   end subroutine foo
  22
  23 end module global
  24
  25  use global
  26  integer :: a,b, c(20)
  27  integer(8) :: ierr
  28  character(80) :: buffer(3)
  29
  30
  31 ! Appending to a USE associated namelist is an extension.
  32
  33  NAMELIST /NL/ a,b                              ! { dg-error "already is USE associated" }
  34
  35  a=1 ; b=2
  36
  37  write(*, NML=NL) z                             !  { dg-error "followed by IO-list" }
  38 !Was correctly picked up before patch.
  39  print NL, z                                    !  { dg-error "PRINT namelist at \\(1\\) is an extension" }
  40 !
  41 ! Not allowed with internal unit
  42 !Was correctly picked up before patch.
  43  write(buffer, NML=NL)                          !  { dg-error "Internal file at \\(1\\) with namelist" }
  44 !Was correctly picked up before patch.
  45  write(buffer, fmt='(i6)', REC=10) a            !  { dg-error "REC tag" }
  46  write(buffer, fmt='(i6)', END=10) a            !  { dg-error "END tag" }
  47
  48 ! Not allowed with REC= specifier
  49 !Was correctly picked up before patch.
  50  read(10, REC=10, END=100)                      !  { dg-error "END tag is not allowed" }
  51  write(*, *, REC=10)                            !  { dg-error "FMT=" }
  52
  53 ! Not allowed with an ADVANCE=specifier
  54  READ(buffer, fmt='(i6)', advance='YES') a      ! { dg-error "internal file" }
  55  READ(1, NML=NL, advance='YES')                 ! { dg-error "NAMELIST IO is not allowed" }
  56
  57  READ(1, fmt='(i6)', advance='NO', size = ierr) ! { dg-error "requires default INTEGER" }
  58
  59  READ(1, advance='YES')                         ! { dg-error "must appear with an explicit format" }
  60
  61  write(1, fmt='(i6)', advance='YES', size = c(1)) a ! { dg-error "output" }
  62  write(1, fmt='(i6)', advance='YES', eor = 100) a   ! { dg-error "output" }
  63
  64  read(1, fmt='(i6)', advance='YES', size = c(1)) a  ! { dg-error "ADVANCE = 'NO'" }
  65  read(1, fmt='(i6)', advance='YES', eor = 100) a    ! { dg-error "ADVANCE = 'NO'" }
  66
  67  READ(1, fmt='(i6)', advance='NO', size = buffer) a ! { dg-error "INTEGER" }
  68 !Was correctly picked up before patch. -correct syntax error
  69  READ(1, fmt='(i6)', advance='YES', size = 10) a    ! { dg-error "Invalid value for SIZE specification" }
  70
  71  READ(1, fmt='(i6)', advance='MAYBE')               !  { dg-error "YES or NO" }
  72
  73 100 continue
  74 200 format (2i6)
  75  END