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Diffstat (limited to 'gcc/testsuite/gfortran.dg/backspace_9.f')
-rw-r--r-- | gcc/testsuite/gfortran.dg/backspace_9.f | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/backspace_9.f b/gcc/testsuite/gfortran.dg/backspace_9.f new file mode 100644 index 000000000..851f518a2 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/backspace_9.f @@ -0,0 +1,57 @@ +! { dg-do run } +! { dg-options "-std=legacy" } +! +! PR32235 incorrectly position text file after backspace +! Test case from PR, prepared by Jerry DeLisle <jvdelisle@gcc.gnu.org> + program main + character*10 a + ncards=2 + input=10 + write(10,"(a)") "One" + write(10,"(a)") "Two" + write(10,"(a)") "Three" + rewind(10) + read(input,1000)a + read(input,1000)a + + call inlist(ncards) + + read(input,1000)a + if (a.ne."Three") call abort + close(10,status="delete") + stop + 1000 format(a10) + 2000 format('read =',a10) + end + + subroutine inlist(ncards) + character*4 data(20) + input=10 +c + if (ncards.eq.0) go to 20 + do 15 i=1,ncards + backspace input + 15 continue +c + 20 continue + kard = 0 + 30 read(input,1000,end=60) data + 40 kard=kard + 1 + 50 continue + if ((kard .eq. 1) .and. (DATA(1) .ne. "One")) call abort + if ((kard .eq. 2) .and. (DATA(1) .ne. "Two")) call abort + if ((kard .eq. 3) .and. (DATA(1) .ne. "Thre")) call abort + + go to 30 + 60 continue + kard=kard - ncards + 1 + do 70 i=1,kard + backspace input + 70 continue +c + return +c + 1000 format (20a4) + 2020 format (8x,i15,8x,20a4) +c + end |