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This is the documentation for a snapshot of the master branch, built from commit 25d613dfbc.

Struct template complement

boost::proto::complement — A metafunction for generating complement expression types, a grammar element for matching complement expressions, and a PrimitiveTransform that dispatches to the proto::pass_through<> transform.


// In header: <boost/proto/traits.hpp>

template<typename T> 
struct complement :  proto::transform< complement<T> > {
  // types
  typedef proto::expr< proto::tag::complement, proto::list1< T > >       type;         
  typedef proto::basic_expr< proto::tag::complement, proto::list1< T > > proto_grammar;

  // member classes/structs/unions
  template<typename Expr, typename State, typename Data> 
  struct impl :
     proto::pass_through<complement>::template impl<Expr, State, Data>