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/* -*- 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 a 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_BOUND
# define SAL_BOUND(x,l,h) ((x) <= (l) ? (l) : ((x) >= (h) ? (h) : (x)))
#endif
#ifndef SAL_ABS
# define SAL_ABS(a) (((a) < 0) ? (-(a)) : (a))
#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: */
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