lar::util::details::dereference_class< T, CanDereference > Struct Template Reference

Functor returning the dereferenced value of the argument. More...

#include <Dereference.h>

Public Types
using	argument_type = T
using	reference_type = typename std::add_lvalue_reference< typename dereferenced_type< T, CanDereference >::type >::type

Public Member Functions
reference_type	operator() (argument_type &ref) const

Detailed Description

template<typename T, bool CanDereference>
struct lar::util::details::dereference_class< T, CanDereference >

Functor returning the dereferenced value of the argument.

Template Parameters

T	type of the argument
CanDereference	whether T can be dereferenced or not

The functor defines a call operator returning:

1. a reference to the value pointed by the argument (CanDereference)
2. or, a reference to the argument itself (!CanDereference).

The behaviour is therefore determined by the CanDereference parameter. Note that the second parameter must express correctly whether the first type can be dereferenced or not. Clearly, this class is not very useful by itself, since we have to tell it how to do the trick. It is used in association with has_dereference_class.

This class is state-less.

Definition at line 132 of file Dereference.h.

Member Typedef Documentation

template<typename T, bool CanDereference>

using lar::util::details::dereference_class< T, CanDereference >::argument_type = T

Definition at line 133 of file Dereference.h.

template<typename T, bool CanDereference>

using lar::util::details::dereference_class< T, CanDereference >::reference_type = typename std::add_lvalue_reference <typename dereferenced_type<T, CanDereference>::type>::type

Definition at line 135 of file Dereference.h.

Member Function Documentation

template<typename T, bool CanDereference>

reference_type lar::util::details::dereference_class< T, CanDereference >::operator() ( argument_type &  ref ) const

inline

Definition at line 137 of file Dereference.h.

{ return ref; }

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

• lardata/lardata/Utilities/Dereference.h