Larry Evans wrote:
In:
html/boost_proto/user_s_guide/extending_proto.html
there's: <--------- cut here ----------- namespace boost { namespace proto { // A specialization of generate<> that causes expression in the // calculator_domain to be wrapped in the calculator<> wrapper. template< typename Expr > struct generate< calculator_domain, Expr > { typedef calculator< Expr > type;
static type make( Expr const & expr ) { return type( expr ); } }; }}
This instructs Proto to wrap all expressions in the calculator_domain in the calculator<> wrapper.
You are looking at out of date documentation. Get the latest docs -- this has been changed. -- Eric Niebler Boost Consulting www.boost-consulting.com