MaybeOptionalPtr< T > Class Template Reference

The MaybeOptionalPtr class is a wrapper for a boost::variant over a T* or a a boost::optional<T>*. It provides a getter returning a boost::optional<const T&> and a setter. The setter throws an error if the underlying value is invalid (either a nullptr or an empty optional). More...

#include <CTiglRelativelyPositionedComponent.h>

Inheritance diagram for MaybeOptionalPtr< T >:

Public Member Functions
boost::optional< const T & >	Get () const
	MaybeOptionalPtr ()=default
	MaybeOptionalPtr (T *t)
	MaybeOptionalPtr (boost::optional< T > *t)
void	Set (const T &value)

Detailed Description

template<typename T>
class MaybeOptionalPtr< T >

The MaybeOptionalPtr class is a wrapper for a boost::variant over a T* or a a boost::optional<T>*. It provides a getter returning a boost::optional<const T&> and a setter. The setter throws an error if the underlying value is invalid (either a nullptr or an empty optional).

The main purpose of this class is to avoid a large number of overloaded ctors for CTiglRelativelyPositionedComponent: Some derived classes of CTiglRelativelyPositionedComponent can have either a mandatory parentUID or an optional parentUID as well as either a mandatory transformation or an optional transformation.

Constructor & Destructor Documentation

MaybeOptionalPtr() [1/3]

template<typename T>

MaybeOptionalPtr< T >::MaybeOptionalPtr ( )

explicitdefault

MaybeOptionalPtr() [2/3]

template<typename T>

MaybeOptionalPtr< T >::MaybeOptionalPtr ( T *  t )

inline

MaybeOptionalPtr() [3/3]

template<typename T>

MaybeOptionalPtr< T >::MaybeOptionalPtr ( boost::optional< T > *  t )

inline

Member Function Documentation

Get()

template<typename T>

boost::optional<const T&> MaybeOptionalPtr< T >::Get ( ) const

inline

Set()

template<typename T>

void MaybeOptionalPtr< T >::Set ( const T &  value )

inline

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The documentation for this class was generated from the following file:

• CTiglRelativelyPositionedComponent.h