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/* Copyright (C) 2002
* Housemarque Oy
* http://www.housemarque.com
*
* Permission to copy, use, modify, sell and distribute this software is
* granted provided this copyright notice appears in all copies. This
* software is provided "as is" without express or implied warranty, and
* with no claim as to its suitability for any purpose.
*
* See http://www.boost.org for most recent version.
*/
/* This example shows how BOOST_PP_CAT() can be used to allow macro
* expansion before token concatenation.
*/
#include <boost/preprocessor/cat.hpp>
/* Use of BOOST_PP_CAT() below allows macro expansion of __LINE__. */
#define STATIC_ASSERT(EXPR)\
typedef char BOOST_PP_CAT(static_assert_,__LINE__)[ (EXPR) ? 1 : -1 ]
STATIC_ASSERT(sizeof(int) <= sizeof(long));
/* This static assert is broken. The __LINE__ is not expanded as desired. */
#define BROKEN_STATIC_ASSERT(EXPR)\
typedef char static_assert_##__LINE__[ (EXPR) ? 1 : -1 ]
BROKEN_STATIC_ASSERT(sizeof(int) <= sizeof(long));
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