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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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