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authorDale Ranta <dir@lanl.gov>2005-04-03 08:07:43 +0000
committerFrançois-Xavier Coudert <fxcoudert@gcc.gnu.org>2005-04-03 08:07:43 +0000
commit00f07d96bdb702f5c6020d1f447d7572dc1aa452 (patch)
tree1d304b753d205a7b07e5e32e0562a965e1ae648b /gcc
parent25af5506aab83668a1d7c0e1efbe88f2b0de3dfb (diff)
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re PR libfortran/20068 (Backspace problems)
PR libfortran/20068 PR libfortran/20125 PR libfortran/20156 PR libfortran/20471 * io/backspace.c (unformatted_backspace): Fix error in arithmetic. (st_backspace): When in WRITING mode, we flush and falling back into READING mode. In all cases, correctly position the stream. * gfortran.dg/backspace.f: New test. Co-Authored-By: Francois-Xavier Coudert <coudert@clipper.ens.fr> From-SVN: r97478
Diffstat (limited to 'gcc')
-rw-r--r--gcc/testsuite/ChangeLog9
-rw-r--r--gcc/testsuite/gfortran.dg/backspace.f82
2 files changed, 91 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2b3c2ce..612dcab 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2005-04-03 Dale Ranta <dir@lanl.gov>
+ Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+ PR libfortran/20068
+ PR libfortran/20125
+ PR libfortran/20156
+ PR libfortran/20471
+ * gfortran.dg/backspace.f: New test.
+
2005-04-02 Daniel Berlin <dberlin@dberlin.org>
* gcc.dg/pr19345.c: New test.
diff --git a/gcc/testsuite/gfortran.dg/backspace.f b/gcc/testsuite/gfortran.dg/backspace.f
new file mode 100644
index 0000000..ebf43f5
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/backspace.f
@@ -0,0 +1,82 @@
+! This file is all about BACKSPACE
+! {dg-do run}
+
+ integer i, n, nr
+ real x(10), y(10)
+
+! PR libfortran/20068
+ open (20, status='scratch')
+ write (20,*) 1
+ write (20,*) 2
+ write (20,*) 3
+ rewind (20)
+ read (20,*) i
+ if (i .ne. 1) call abort
+ write (*,*) ' '
+ backspace (20)
+ read (20,*) i
+ if (i .ne. 1) call abort
+ close (20)
+
+! PR libfortran/20125
+ open (20, status='scratch')
+ write (20,*) 7
+ backspace (20)
+ read (20,*) i
+ if (i .ne. 7) call abort
+ close (20)
+
+ open (20, status='scratch', form='unformatted')
+ write (20) 8
+ backspace (20)
+ read (20) i
+ if (i .ne. 8) call abort
+ close (20)
+
+! PR libfortran/20471
+ do n = 1, 10
+ x(n) = sqrt(real(n))
+ end do
+ open (3, form='unformatted', status='scratch')
+ write (3) (x(n),n=1,10)
+ backspace (3)
+ rewind (3)
+ read (3) (y(n),n=1,10)
+
+ do n = 1, 10
+ if (abs(x(n)-y(n)) > 0.00001) call abort
+ end do
+ close (3)
+
+! PR libfortran/20156
+ open (3, form='unformatted', status='scratch')
+ do i = 1, 5
+ x(1) = i
+ write (3) n, (x(n),n=1,10)
+ end do
+ nr = 0
+ rewind (3)
+ 20 continue
+ read (3,end=30,err=90) n, (x(n),n=1,10)
+ nr = nr + 1
+ goto 20
+ 30 continue
+ if (nr .ne. 5) call abort
+
+ do i = 1, nr+1
+ backspace (3)
+ end do
+
+ do i = 1, nr
+ read(3,end=70,err=90) n, (x(n),n=1,10)
+ if (abs(x(1) - i) .gt. 0.001) call abort
+ end do
+ close (3)
+ stop
+
+ 70 continue
+ call abort
+ 90 continue
+ call abort
+
+ end