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Struct top

boost::xpressive::op::top — top is a PolymorphicFunctionObject for fetching the top element of a stack.


// In header: <boost/xpressive/regex_actions.hpp>

struct top {
  // member classes/structs/unions
  template<typename Sig> 
  struct result {
  template<typename This, typename Sequence> 
  struct result<This(Sequence)> {
    // types
    typedef remove_reference< Sequence >::type                                                                                                    sequence_type;
    typedef mpl::if_c< is_const< sequence_type >::value, typename sequence_type::value_type const &, typename sequence_type::value_type & >::type type;         

  // public data members
  result< top(Sequence &)>::type operator();


top public public data members

  1. result< top(Sequence &)>::type operator();