Added Wave review candidate to repository.

[SVN r1909]

samples/cpp_tokens/instantiate_cpp_exprgrammar.cpp

@@ -0,0 +1,45 @@
+/*=============================================================================
+    Wave: A Standard compliant C++ preprocessor library
+
+    Sample: prints out the preprocessed tokens returned by the pp iterator
+            Explicit instantiation of the cpp_expression_grammar parsing 
+            function
+
+    Copyright (c) 2001-2004 Hartmut Kaiser
+    http://spirit.sourceforge.net/
+
+    Use, modification and distribution is subject to the Boost Software
+    License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+
+    See Copyright.txt for full acknowledgements.
+=============================================================================*/
+
+#include "cpp_tokens.hpp"          // config data
+
+#if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
+
+#include <string>
+
+#include <boost/wave/token_ids.hpp>
+
+#include "slex_token.hpp"
+#include "slex_iterator.hpp"
+
+#include <boost/wave/grammars/cpp_expression_grammar.hpp>
+
+///////////////////////////////////////////////////////////////////////////////
+//  
+//  Explicit instantiation of the expression_grammar_gen template with the 
+//  correct token type. This instantiates the corresponding parse function, 
+//  which in turn instantiates the expression_grammar object (see 
+//  wave/grammars/cpp_expression_grammar.hpp)
+//
+///////////////////////////////////////////////////////////////////////////////
+
+typedef boost::wave::cpp_token_sample::slex_token<> token_t;
+
+template struct boost::wave::grammars::expression_grammar_gen<token_t>;
+
+#endif // #if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
+