BaseLib::detail::CovariantRandomAccessContainerView< Element, Container > Struct Template Reference

Detailed Description

template<typename Element, typename Container>
struct BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >

Definition at line 145 of file ContainerTools.h.

#include <ContainerTools.h>

Inheritance diagram for BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >:

Collaboration diagram for BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >:

Public Member Functions
	CovariantRandomAccessContainerView (Container &container)
Element &	operator[] (std::size_t index) const override
std::size_t	size () const noexcept override
Public Member Functions inherited from BaseLib::detail::PolymorphicRandomAccessContainerViewInterface< Element >
PolymorphicRandomAccessContainerViewIterator< Element >	begin () const noexcept
PolymorphicRandomAccessContainerViewIterator< Element >	end () const noexcept
virtual	~PolymorphicRandomAccessContainerViewInterface ()=default

Private Attributes
Container &	container_

Constructor & Destructor Documentation

CovariantRandomAccessContainerView()

template<typename Element , typename Container >

BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >::CovariantRandomAccessContainerView ( Container & container )

inlineexplicit

Definition at line 148 of file ContainerTools.h.

        : container_{container}
    {
    }

Member Function Documentation

operator[]()

template<typename Element , typename Container >

Element & BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >::operator[] ( std::size_t index ) const

inlineoverridevirtual

Implements BaseLib::detail::PolymorphicRandomAccessContainerViewInterface< Element >.

Definition at line 153 of file ContainerTools.h.

    {
        if constexpr (requires {
                          typename Container::value_type::element_type;
                      })
        {
            static_assert(
                std::derived_from<typename Container::value_type::element_type,
                                  Element>);
 
            return *container_[index];
        }
        else
        {
            static_assert(
                std::derived_from<typename Container::value_type, Element>);
 
            // this restriction is necessary because of the constness
            // propagation of std::vector.
            static_assert(
                (!std::is_const_v<Container>) || std::is_const_v<Element>,
                "If the element type is non-const, the container must be "
                "non-const, too.");
 
            return container_[index];
        }
    }

size()

template<typename Element , typename Container >

std::size_t BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >::size ( ) const

inlineoverridevirtualnoexcept

Implements BaseLib::detail::PolymorphicRandomAccessContainerViewInterface< Element >.

Definition at line 181 of file ContainerTools.h.

{ return container_.size(); }

Member Data Documentation

container_

template<typename Element , typename Container >

Container& BaseLib::detail::CovariantRandomAccessContainerView< Element, Container >::container_

private

Definition at line 184 of file ContainerTools.h.

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

• BaseLib/ContainerTools.h