gcc/gcc11-libgfortran-flush.patch

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commit c14f38d4292ec22462a4080841d526f87428130a
Author: Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Date: Thu Dec 16 15:33:17 2021 +0100
Fix FLUSH IOSTAT value
PR libfortran/101255
libgfortran/ChangeLog:
* io/file_pos.c: Fix error code.
gcc/testsuite/ChangeLog:
* gfortran.dg/iostat_5.f90: New file.
diff --git a/gcc/testsuite/gfortran.dg/iostat_5.f90 b/gcc/testsuite/gfortran.dg/iostat_5.f90
new file mode 100644
index 00000000000..1e72dfdf7e1
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/iostat_5.f90
@@ -0,0 +1,16 @@
+! PR libfortran/101255
+! { dg-do run }
+
+program test
+ use ISO_FORTRAN_ENV, only: IOSTAT_EOR, IOSTAT_END
+ implicit none
+ character(len=50) :: err
+ integer :: i
+
+ err = ""
+ flush(99, iostat=i, iomsg=err)
+
+ if (err == "") stop 1
+ if (i >= 0) stop 2
+ if (i == IOSTAT_EOR .or. i == IOSTAT_END) stop 3
+end
diff --git a/libgfortran/io/file_pos.c b/libgfortran/io/file_pos.c
index 7e71ca577e0..4ed1698f17a 100644
--- a/libgfortran/io/file_pos.c
+++ b/libgfortran/io/file_pos.c
@@ -527,7 +527,7 @@ st_flush (st_parameter_filepos *fpp)
}
else
/* FLUSH on unconnected unit is illegal: F95 std., 9.3.5. */
- generate_error (&fpp->common, LIBERROR_BAD_OPTION,
+ generate_error (&fpp->common, -LIBERROR_BAD_UNIT,
"Specified UNIT in FLUSH is not connected");
if (needs_unlock)