1 files changed, 58 insertions, 0 deletions
diff --git a/include/sal/macros.h b/include/sal/macros.h
new file mode 100644
index 000000000..9adb60bfb
--- /dev/null
+++ b/include/sal/macros.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SAL_MACROS_H
+#define INCLUDED_SAL_MACROS_H
+
+#include <stddef.h>
+
+#ifndef SAL_N_ELEMENTS
+#    if defined(__cplusplus) && ( defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L )
+        /*
+         * Magic template to calculate at compile time the number of elements
+         * in an array. Enforcing that the argument must be an array and not
+         * a pointer, e.g.
+         *  char *pFoo="foo";
+         *  SAL_N_ELEMENTS(pFoo);
+         * fails while
+         *  SAL_N_ELEMENTS("foo");
+         * or
+         *  char aFoo[]="foo";
+         *  SAL_N_ELEMENTS(aFoo);
+         * pass
+         *
+         * Unfortunately if arr is an array of an anonymous class then we need
+         * C++0x, i.e. see
+         * http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#757
+         */
+         template <typename T, size_t S> char (&sal_n_array_size( T(&)[S] ))[S];
+#        define SAL_N_ELEMENTS(arr)     (sizeof(sal_n_array_size(arr)))
+#    else
+#        define SAL_N_ELEMENTS(arr)     (sizeof (arr) / sizeof ((arr)[0]))
+#    endif
+#endif
+
+#ifndef SAL_STRINGIFY
+#   define SAL_STRINGIFY_ARG(x) #x
+#   define SAL_STRINGIFY(x) SAL_STRINGIFY_ARG(x)
+#endif
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */