1 files changed, 69 insertions, 0 deletions
diff --git a/libgfortran/runtime/convert_char.c b/libgfortran/runtime/convert_char.c
new file mode 100644
index 000000000..540c2bfdb
--- /dev/null
+++ b/libgfortran/runtime/convert_char.c
@@ -0,0 +1,69 @@
+/* Runtime conversion of strings from one character kind to another.
+   Copyright 2008, 2009 Free Software Foundation, Inc.
+
+This file is part of the GNU Fortran runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+
+extern void convert_char1_to_char4 (gfc_char4_t **, gfc_charlen_type,
+				    const unsigned char *);
+export_proto(convert_char1_to_char4);
+
+extern void convert_char4_to_char1 (unsigned char **, gfc_charlen_type,
+				    const gfc_char4_t *);
+export_proto(convert_char4_to_char1);
+
+
+void
+convert_char1_to_char4 (gfc_char4_t **dst, gfc_charlen_type len,
+			const unsigned char *src)
+{
+  gfc_charlen_type i, l;
+
+  l = len > 0 ? len : 0;
+  *dst = get_mem ((l + 1) * sizeof (gfc_char4_t));
+
+  for (i = 0; i < l; i++)
+    (*dst)[i] = src[i];
+
+  (*dst)[l] = '\0';
+}
+
+
+void
+convert_char4_to_char1 (unsigned char **dst, gfc_charlen_type len,
+			const gfc_char4_t *src)
+{
+  gfc_charlen_type i, l;
+
+  l = len > 0 ? len : 0;
+  *dst = get_mem ((l + 1) * sizeof (unsigned char));
+
+  for (i = 0; i < l; i++)
+    (*dst)[i] = src[i];
+
+  (*dst)[l] = '\0';
+}