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diff --git a/libgfortran/io/size_from_kind.c b/libgfortran/io/size_from_kind.c
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+/* Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
+ Contributed by Janne Blomqvist
+
+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, 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/>. */
+
+
+/* This file contains utility functions for determining the size of a
+ variable given its kind. */
+
+#include "io.h"
+
+size_t
+size_from_real_kind (int kind)
+{
+ switch (kind)
+ {
+#ifdef HAVE_GFC_REAL_4
+ case 4:
+ return sizeof (GFC_REAL_4);
+#endif
+#ifdef HAVE_GFC_REAL_8
+ case 8:
+ return sizeof (GFC_REAL_8);
+#endif
+#ifdef HAVE_GFC_REAL_10
+ case 10:
+ return sizeof (GFC_REAL_10);
+#endif
+#ifdef HAVE_GFC_REAL_16
+ case 16:
+ return sizeof (GFC_REAL_16);
+#endif
+ default:
+ return kind;
+ }
+}
+
+
+size_t
+size_from_complex_kind (int kind)
+{
+ switch (kind)
+ {
+#ifdef HAVE_GFC_COMPLEX_4
+ case 4:
+ return sizeof (GFC_COMPLEX_4);
+#endif
+#ifdef HAVE_GFC_COMPLEX_8
+ case 8:
+ return sizeof (GFC_COMPLEX_8);
+#endif
+#ifdef HAVE_GFC_COMPLEX_10
+ case 10:
+ return sizeof (GFC_COMPLEX_10);
+#endif
+#ifdef HAVE_GFC_COMPLEX_16
+ case 16:
+ return sizeof (GFC_COMPLEX_16);
+#endif
+ default:
+ return 2 * kind;
+ }
+}
+