]> git.ipfire.org Git - thirdparty/gcc.git/commitdiff
libgfortran: Fix file position after ENDFILE statement.
authorJerry DeLisle <jvdelisle@gcc.gnu.org>
Tue, 26 Mar 2024 23:44:17 +0000 (16:44 -0700)
committerJerry DeLisle <jvdelisle@gcc.gnu.org>
Wed, 27 Mar 2024 00:13:51 +0000 (17:13 -0700)
PR libfortran/107031

libgfortran/ChangeLog:

* io/file_pos.c (st_endfile): Remove call to next_record().

gcc/testsuite/ChangeLog:

* gfortran.dg/endfile_5.f90: New test.

gcc/testsuite/gfortran.dg/endfile_5.f90 [new file with mode: 0644]
libgfortran/io/file_pos.c

diff --git a/gcc/testsuite/gfortran.dg/endfile_5.f90 b/gcc/testsuite/gfortran.dg/endfile_5.f90
new file mode 100644 (file)
index 0000000..90eaa6b
--- /dev/null
@@ -0,0 +1,30 @@
+! { dg-do run }
+! PR107031 Check that endfile truncates at end of record 5.
+program test_truncate
+    integer :: num_rec, tmp, i, nr, j
+    open(10, file="in.dat", action='readwrite')
+
+    do i=1,10
+      write(10, *) i
+    end do
+
+    rewind (10)
+
+    num_rec = 5
+    i = 1
+    ioerr = 0
+    do while (i <= num_rec .and. ioerr == 0)
+        read(10, *, iostat=ioerr) tmp
+        i = i + 1
+    enddo
+    endfile(10)
+    rewind (10)
+    i = 0
+    ioerr = 0
+    do while (i <= num_rec + 1 .and. ioerr == 0)
+      read(10, *, iostat=ioerr) j
+      i = i + 1
+    end do
+    close(10, status='delete')
+    if (i - 1 /= 5) stop 1
+end program test_truncate
index 2bc05b293f8c1cb75347c588b08b2b26668029de..d169961f997199bde119de383fc7d335153ecb2a 100644 (file)
@@ -352,7 +352,6 @@ st_endfile (st_parameter_filepos *fpp)
          dtp.common = fpp->common;
          memset (&dtp.u.p, 0, sizeof (dtp.u.p));
          dtp.u.p.current_unit = u;
-         next_record (&dtp, 1);
        }
 
       unit_truncate (u, stell (u->s), &fpp->common);