BaseLib::PolymorphicRandomAccessContainerView< Element > Struct Template Reference

Detailed Description

template<typename Element>
struct BaseLib::PolymorphicRandomAccessContainerView< Element >

Provides access to the (possibly upcasted) elements of a random access container.

Example:

std::vector<std::unique_ptr<Pet>> pets;
pets.push_back(std::make_unique<Budgie>());
pets.push_back(std::make_unique<Dog>());
 
// Pet is derived from Animal
auto f = [](BaseLib::PolymorphicRandomAccessContainerView<Animal> const&
             animals_)
{
 ASSERT_EQ(2, animals_.size());
 
 for (auto& animal : animals_)
 {
     animal.color = "red";
 }
};
 
f(pets);  // pass the std::vector<std::unique_ptr<Pet>> to the function
          // taking the view

For further usage examples take a look into the unit tests.

Definition at line 211 of file ContainerTools.h.

#include <ContainerTools.h>

Public Member Functions
	PolymorphicRandomAccessContainerView (PolymorphicRandomAccessContainerView const &)=delete
	PolymorphicRandomAccessContainerView (PolymorphicRandomAccessContainerView &&)=default
template<typename Container>
	explicit (false) PolymorphicRandomAccessContainerView(Container &container)
template<typename Container>
	explicit (false) PolymorphicRandomAccessContainerView(Container const &container)
PolymorphicRandomAccessContainerView &	operator= (PolymorphicRandomAccessContainerView const &)=delete
PolymorphicRandomAccessContainerView &	operator= (PolymorphicRandomAccessContainerView &&)=default
detail::PolymorphicRandomAccessContainerViewIterator< Element >	begin () const noexcept
detail::PolymorphicRandomAccessContainerViewIterator< Element >	end () const noexcept
std::size_t	size () const noexcept
Element &	operator[] (std::size_t n) const

Private Attributes
std::unique_ptr< detail::PolymorphicRandomAccessContainerViewInterface< Element > >	impl_

Constructor & Destructor Documentation

PolymorphicRandomAccessContainerView() [1/2]

template<typename Element>

BaseLib::PolymorphicRandomAccessContainerView< Element >::PolymorphicRandomAccessContainerView ( PolymorphicRandomAccessContainerView< Element > const & )

delete

References PolymorphicRandomAccessContainerView().

Referenced by PolymorphicRandomAccessContainerView(), PolymorphicRandomAccessContainerView(), explicit(), explicit(), operator=(), and operator=().

PolymorphicRandomAccessContainerView() [2/2]

template<typename Element>

BaseLib::PolymorphicRandomAccessContainerView< Element >::PolymorphicRandomAccessContainerView ( PolymorphicRandomAccessContainerView< Element > && )

default

References PolymorphicRandomAccessContainerView().

Member Function Documentation

begin()

template<typename Element>

detail::PolymorphicRandomAccessContainerViewIterator< Element > BaseLib::PolymorphicRandomAccessContainerView< Element >::begin ( ) const

inlinenodiscardnoexcept

Definition at line 245 of file ContainerTools.h.

    {
        return impl_->begin();
    }

References impl_.

end()

template<typename Element>

detail::PolymorphicRandomAccessContainerViewIterator< Element > BaseLib::PolymorphicRandomAccessContainerView< Element >::end ( ) const

inlinenodiscardnoexcept

Definition at line 250 of file ContainerTools.h.

    {
        return impl_->end();
    }

References impl_.

explicit() [1/2]

template<typename Element>

template<typename Container>

BaseLib::PolymorphicRandomAccessContainerView< Element >::explicit ( false ) &

inline

Definition at line 219 of file ContainerTools.h.

        : impl_{std::make_unique<
              detail::CovariantRandomAccessContainerView<Element, Container>>(
              container)}
    {
    }

References PolymorphicRandomAccessContainerView(), and impl_.

explicit() [2/2]

template<typename Element>

template<typename Container>

BaseLib::PolymorphicRandomAccessContainerView< Element >::explicit ( false ) const &

inline

Definition at line 229 of file ContainerTools.h.

        : impl_{std::make_unique<
              detail::CovariantRandomAccessContainerView<Element,
                                                         Container const>>(
              container)}
    {
    }

References PolymorphicRandomAccessContainerView(), and impl_.

operator=() [1/2]

template<typename Element>

PolymorphicRandomAccessContainerView & BaseLib::PolymorphicRandomAccessContainerView< Element >::operator= ( PolymorphicRandomAccessContainerView< Element > && )

default

References PolymorphicRandomAccessContainerView().

operator=() [2/2]

template<typename Element>

PolymorphicRandomAccessContainerView & BaseLib::PolymorphicRandomAccessContainerView< Element >::operator= ( PolymorphicRandomAccessContainerView< Element > const & )

delete

References PolymorphicRandomAccessContainerView().

operator[]()

template<typename Element>

Element & BaseLib::PolymorphicRandomAccessContainerView< Element >::operator[] ( std::size_t n ) const

inlinenodiscard

Definition at line 257 of file ContainerTools.h.

    {
        return (*impl_)[n];
    }

References impl_.

size()

template<typename Element>

std::size_t BaseLib::PolymorphicRandomAccessContainerView< Element >::size ( ) const

inlinenodiscardnoexcept

Definition at line 255 of file ContainerTools.h.

{ return impl_->size(); }

References impl_.

Member Data Documentation

impl_

template<typename Element>

std::unique_ptr< detail::PolymorphicRandomAccessContainerViewInterface<Element> > BaseLib::PolymorphicRandomAccessContainerView< Element >::impl_

private

Definition at line 265 of file ContainerTools.h.

Referenced by begin(), end(), explicit(), explicit(), operator[](), and size().

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

• ContainerTools.h