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PR 53796 Make inquire(file=, recl=) conform to F2018

Message ID 20190807073426.12782-1-blomqvist.janne@gmail.com
State New
Headers show
Series PR 53796 Make inquire(file=, recl=) conform to F2018 | expand

Commit Message

Janne Blomqvist Aug. 7, 2019, 7:34 a.m. UTC 
In my original patch to fix PR 53796 I forgot to fix the behavior for
unconnected units when inquiring via filename. This patch fixes that.

Regtested on x86_64-pc-linux-gnu, committed as obvious.

libgfortran/ChangeLog:

2019-08-07  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/53796
	* io/inquire.c (inquire_via_filename): Set recl to -1 for
	unconnected units.

gcc/testsuite/ChangeLog:

2019-08-07  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/53796
	* gfortran.dg/inquire_recl_f2018.f90: Test for unconnected unit
	with inquire via filename.
---
 gcc/testsuite/gfortran.dg/inquire_recl_f2018.f90 | 7 +++++++
 libgfortran/io/inquire.c                         | 4 +++-
 2 files changed, 10 insertions(+), 1 deletion(-)
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Patch

diff --git a/gcc/testsuite/gfortran.dg/inquire_recl_f2018.f90 b/gcc/testsuite/gfortran.dg/inquire_recl_f2018.f90
index b744e920f7b..dfb4092a45f 100644
--- a/gcc/testsuite/gfortran.dg/inquire_recl_f2018.f90
+++ b/gcc/testsuite/gfortran.dg/inquire_recl_f2018.f90
@@ -39,4 +39,11 @@  program inqrecl
   if (r /= -2) then
      STOP 5
   end if
+
+  ! Also inquire by filename for a non-opened unit is considered
+  ! unconnected similar to the first test.
+  inquire(file='unconnectedfile.txt', recl=r)
+  if (r /= -1) then
+     stop 6
+  end if
 end program inqrecl
diff --git a/libgfortran/io/inquire.c b/libgfortran/io/inquire.c
index 05cfc14233f..c2174d0a307 100644
--- a/libgfortran/io/inquire.c
+++ b/libgfortran/io/inquire.c
@@ -706,7 +706,9 @@  inquire_via_filename (st_parameter_inquire *iqp)
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_RECL_OUT) != 0)
-    *iqp->recl_out = 0;
+    /* F2018 (N2137) 12.10.2.26: If there is no connection, recl is
+       assigned the value -1.  */
+    *iqp->recl_out = -1;
 
   if ((cf & IOPARM_INQUIRE_HAS_NEXTREC) != 0)
     *iqp->nextrec = 0;