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:
  // member classes/structs/unions

  struct iterator {
    // construct/copy/destruct
    explicit iterator(singleton< T > const *);

    // public member functions
    sample const  & operator *() const;
    void operator++();
  };
  // construct/copy/destruct
  explicit singleton(T &&);
  singleton(singleton &&);

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

  // public data members
  static const int arity;
};

Description

`singleton` public construct/copy/destruct

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

`singleton` public member functions

```
T const  & value() const;
```
Value access method.
```
data::size_t size() const;
```
dataset interface
```
iterator begin() const;
```