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re PR libfortran/31052 ([4.2 only] Bad IOSTAT values when readings NAMELISTs past EOF) 

2007-04-01  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/31052
	* gfortran.dg/namelist_28.f90: New test.

From-SVN: r123404
This commit is contained in:
Jerry DeLisle 2007-04-01 17:33:13 +00:00
parent 08f9246a45
commit a616b1da79
2 changed files with 95 additions and 0 deletions
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gcc/testsuite/ChangeLog
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2007-04-01 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/31052
* gfortran.dg/namelist_28.f90: New test.
2007-04-01 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/31366

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gcc/testsuite/gfortran.dg/namelist_28.f90 Normal file
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! { 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, parameter :: nmlunit = 12 ! Namelist unit
integer :: stat
open (nmlunit, status="scratch")
write(nmlunit, '(a)') "&REPORT type='report1' /"
write(nmlunit, '(a)') "&REPORT type='report2' /"
write(nmlunit, '(a)') "!"
rewind (nmlunit)
! The call to position_nml is contained in the subroutine
call read_report (nmlunit, stat)
rewind (nmlunit)
call position_nml (nmlunit, 'MISSING', stat)
rewind (nmlunit)
call read_report (nmlunit, stat) ! gfortran fails here
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
logical :: first
first = .true.
status = 0
do
line = ""
read (unit,'(a)',iostat=ios) line
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
!------------------
! Namelist 'REPORT'
!------------------
character(len=12) :: type
namelist /REPORT/ type
!-------------------------------------
! Loop to read namelist multiple times
!-------------------------------------
iuse = 0
do
!----------------------------------------
! Preset namelist variables with defaults
!----------------------------------------
type = ''
!--------------
! Read namelist
!--------------
call position_nml (unit, "REPORT", status)
if (stat /= 0) then
ios = status
if (iuse /= 2) call abort()
return
end if
read (unit, nml=REPORT, iostat=ios)
if (ios /= 0) exit
iuse = iuse + 1
end do
status = ios
end subroutine read_report
end program gfcbug61