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- //[ HelloWorld
- ////////////////////////////////////////////////////////////////////
- // Copyright 2008 Eric Niebler. Distributed under 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)
- #include <iostream>
- #include <boost/proto/core.hpp>
- #include <boost/proto/context.hpp>
- // This #include is only needed for compilers that use typeof emulation:
- #include <boost/typeof/std/ostream.hpp>
- namespace proto = boost::proto;
- proto::terminal< std::ostream & >::type cout_ = {std::cout};
- template< typename Expr >
- void evaluate( Expr const & expr )
- {
- proto::default_context ctx;
- proto::eval(expr, ctx);
- }
- int main()
- {
- evaluate( cout_ << "hello" << ',' << " world" );
- return 0;
- }
- //]
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