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Diffstat (limited to 'gcc/testsuite/gfortran.dg/backspace_6.f')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/backspace_6.f | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/backspace_6.f b/gcc/testsuite/gfortran.dg/backspace_6.f new file mode 100644 index 000000000..90affdc77 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/backspace_6.f @@ -0,0 +1,34 @@ +!{ dg-do run { target fd_truncate } } +! PR26464 File I/O error related to buffering and BACKSPACE +! Test case derived from case by Dale Ranta. +! Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org> + program test + integer,parameter :: datasize = 5000 + dimension idata(datasize) + idata = -42 + open (11, status="scratch", form="unformatted") + idata(1) = -1 + idata(datasize) = -2 + write(11)idata + idata(1) = -2 + idata(datasize) = -3 + write(11)idata + idata(1) = -3 + idata(datasize) = -4 + write(11)idata + backspace 11 + backspace 11 + idata(1) = -2 + idata(datasize) = -3 + write(11)idata + read(11,end= 1003 )idata + call abort() + 1003 continue + backspace 11 + backspace 11 + read(11,end= 1004 )idata + if(idata(1).ne.-2 .or.idata(datasize).ne.-3) call abort() + stop + 1004 continue + end + |