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Struct template reference

boost::xpressive::reference — reference<> is a lazy wrapper for a reference that can be used in xpressive semantic actions.

Synopsis

// In header: <boost/xpressive/xpressive_fwd.hpp>
template<typename T> 
struct reference : public proto::extends< proto::terminal< reference_wrapper< T > >::type, reference< T > >
{
  // construct/copy/destruct
  explicit reference(T &);
  // public member functions
  T & get() const;
};

Description

Вот пример того, как использовать reference<>, чтобы создать ленивую ссылку на существующий объект, чтобы его можно было прочитать и написать в хпрессивном семантическом действии.

using namespace boost::xpressive;
std::map<std::string, int> result;
reference<std::map<std::string, int> > result_ref(result);
// Match a word and an integer, separated by =>,
// and then stuff the result into a std::map<>
sregex pair = ( (s1= +_w) >> "=>" >> (s2= +_d) )
    [ result_ref[s1] = as<int>(s2) ];

Template Parameters

```
имя  T
```
Тип референта.

`reference` public construct/copy/destruct

>> >> >> >> >> > > >>>>>

Struct template reference

Boost , The Boost C++ Libraries BoostBook Documentation Subset , Reference

Boost C++ Libraries

Struct template reference

Synopsis

Description

Template Parameters

reference public construct/copy/destruct

reference public member functions

`reference` public construct/copy/destruct

`reference` public member functions