Boost C++ Libraries

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Class template singleton

boost::unit_test::data::monomorphic::singleton — Models a single element data set.

Synopsis

// In header: <boost/test/data/monomorphic/singleton.hpp>

template<typename T> 
class singleton : public boost::unit_test::data::monomorphic::dataset< boost::decay< T >::type >
{
public:
  // member classes/structs/unions

  struct iterator :
    public boost::unit_test::data::monomorphic::dataset< T >::iterator
  {
    // construct/copy/destruct
    explicit iterator(singleton< T > const &);

    // public member functions
    virtual base::data_type const & operator*();
    virtual void operator++();
  };

  enum @8 { arity = = 1 };
  // construct/copy/destruct
  explicit singleton(T &&);
  singleton(singleton &&);

  // public member functions
  T const & value() const;
  virtual data::size_t size() const;
  virtual iter_ptr begin() const;
};

Description

`singleton` public construct/copy/destruct

```
explicit singleton(T && value);
```
Constructor.
```
singleton(singleton && s);
```
Move constructor.

`singleton` public member functions

```
T const & value() const;
```
```
virtual data::size_t size() const;
```
Dataset size.
```
virtual iter_ptr begin() const;
```
Iterator to use to iterate over this dataset.