107 lines
2.8 KiB
Fortran
107 lines
2.8 KiB
Fortran
|
! { dg-do run }
|
||
|
! PR31052 Bad IOSTAT values when readings NAMELISTs past EOF.
|
||
|
! Patch derived from PR, submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org>
|
||
|
program gfcbug61
|
||
|
implicit none
|
||
|
integer :: stat
|
||
|
|
||
|
open (12, status="scratch")
|
||
|
write (12, '(a)')"!================"
|
||
|
write (12, '(a)')"! Namelist REPORT"
|
||
|
write (12, '(a)')"!================"
|
||
|
write (12, '(a)')" &REPORT type = 'SYNOP' "
|
||
|
write (12, '(a)')" use = 'active'"
|
||
|
write (12, '(a)')" max_proc = 20"
|
||
|
write (12, '(a)')" /"
|
||
|
write (12, '(a)')"! Other namelists..."
|
||
|
write (12, '(a)')" &OTHER i = 1 /"
|
||
|
rewind (12)
|
||
|
|
||
|
! Read /REPORT/ the first time
|
||
|
rewind (12)
|
||
|
call position_nml (12, "REPORT", stat)
|
||
|
if (stat.ne.0) call abort()
|
||
|
if (stat == 0) call read_report (12, stat)
|
||
|
|
||
|
! Comment out the following lines to hide the bug
|
||
|
rewind (12)
|
||
|
call position_nml (12, "MISSING", stat)
|
||
|
if (stat.ne.-1) call abort ()
|
||
|
|
||
|
! Read /REPORT/ again
|
||
|
rewind (12)
|
||
|
call position_nml (12, "REPORT", stat)
|
||
|
if (stat.ne.0) call abort()
|
||
|
|
||
|
contains
|
||
|
|
||
|
subroutine position_nml (unit, name, status)
|
||
|
! Check for presence of namelist 'name'
|
||
|
integer :: unit, status
|
||
|
character(len=*), intent(in) :: name
|
||
|
|
||
|
character(len=255) :: line
|
||
|
integer :: ios, idx, k
|
||
|
logical :: first
|
||
|
|
||
|
first = .true.
|
||
|
status = 0
|
||
|
ios = 0
|
||
|
line = ""
|
||
|
do k=1,10
|
||
|
read (unit,'(a)',iostat=ios) line
|
||
|
if (first) then
|
||
|
first = .false.
|
||
|
end if
|
||
|
if (ios < 0) then
|
||
|
! EOF encountered!
|
||
|
backspace (unit)
|
||
|
status = -1
|
||
|
return
|
||
|
else if (ios > 0) then
|
||
|
! Error encountered!
|
||
|
status = +1
|
||
|
return
|
||
|
end if
|
||
|
idx = index (line, "&"//trim (name))
|
||
|
if (idx > 0) then
|
||
|
backspace (unit)
|
||
|
return
|
||
|
end if
|
||
|
end do
|
||
|
end subroutine position_nml
|
||
|
|
||
|
subroutine read_report (unit, status)
|
||
|
integer :: unit, status
|
||
|
|
||
|
integer :: iuse, ios, k
|
||
|
!------------------
|
||
|
! Namelist 'REPORT'
|
||
|
!------------------
|
||
|
character(len=12) :: type, use
|
||
|
integer :: max_proc
|
||
|
namelist /REPORT/ type, use, max_proc
|
||
|
!-------------------------------------
|
||
|
! Loop to read namelist multiple times
|
||
|
!-------------------------------------
|
||
|
iuse = 0
|
||
|
do k=1,5
|
||
|
!----------------------------------------
|
||
|
! Preset namelist variables with defaults
|
||
|
!----------------------------------------
|
||
|
type = ''
|
||
|
use = ''
|
||
|
max_proc = -1
|
||
|
!--------------
|
||
|
! Read namelist
|
||
|
!--------------
|
||
|
read (unit, nml=REPORT, iostat=ios)
|
||
|
if (ios /= 0) exit
|
||
|
iuse = iuse + 1
|
||
|
end do
|
||
|
if (iuse.ne.1) call abort()
|
||
|
status = ios
|
||
|
end subroutine read_report
|
||
|
|
||
|
end program gfcbug61
|