View Template Library

map_values<Container, Const_tag, Base>


Category: adaptors	Component type: type

Description

The map_values is a tranform_view presenting the values of a Pair Associative Container.

Template parameters

Parameter	Description	Default
`container`	The view's container type: in general, this will be a Pair Associative Container.
`const_tag`	The view's const tag: either `const_view_tag` or `mutable_view_tag`	`const_view_tag`
`base`	The view's ownership type: the base class that determines if the view references or owns the container. In general, only the default `referenced_ownership` will be useful.	`referenced_ownership`

Definition

Defined in the header map_view.hpp.

Model of

Single Container View

Type requirements

Container satisfies	View satisfies
Container	Container [1]
Forward Container	Forward Container [1]
Pair Associative Container

Members

Member	Where defined	Description
`value_type`	Container	The type `container::value_type::second` of the elements accessed through the container.
`domain_t`	view	The type of the referenced container.
`pointer`	Container	Pointer to value_type.
`reference`	Container	Reference to value_type.
`const_reference`	Container	Const reference to value_type.
`size_type`	Container	`container::size_type`.
`difference_type`	Container	`container::difference_type`.
`iterator`	Container	Iterator used to iterate through the view.
`const_iterator`	Container	Const iterator used to iterate through the view.
`reverse_iterator`	Reversible Container	Iterator used to iterate backwards through a container.
`const_reverse_iterator`	Reversible Container	Const iterator used to iterate backwards through a container.
`iterator begin()`	Container	Returns an iterator pointing to the begin of the view.
`iterator end()`	Container	Returns an iterator pointing to the end of the view.
`const_iterator begin() const`	Container	Returns a const_iterator pointing to the begin of the view.
`const_iterator end() const`	Container	Returns a const_iterator pointing to the end of the view.
`reverse_iterator rbegin()`	Reversible Container	Valid for bidirectional container's only. Returns a `reverse_iterator` pointing to the beginning of the reversed container.
`reverse_iterator rend()`	Reversible Container	Valid for bidirectional container's only. Returns a `reverse_iterator` pointing to the end of the reversed container.
`const_reverse_iterator rbegin() const`	Reversible Container	Valid for bidirectional container's only. Returns a `const_reverse_iterator` pointing to the beginning of the reversed container.
`const_reverse_iterator rend() const`	Reversible Container	Valid for bidirectional container's only. Returns a `const_reverse_iterator` pointing to the end of the reversed container.
`size_type size() const`	Container	Returns the size of the view.
`size_type max_size() const`	Container	Returns the largest possible size of the view.
`bool empty() const`	Container	true if the view's size is 0.
`map_values()`	view	Creates an empty view.
`map_values(container_t&)`	view	Creates a view of given container.
`void swap(map_values&)`	Container	Swaps the two views. Iterators are invalidated by this operation. For referencing views, the containers themselves are not swapped.
`bool operator==(const map_values&, const map_values&)`	Forward Container	Tests two views for equality. This is a global function, not a member function. Views may be equal even if their referenced containers are not.
`bool operator<(const map_values&, const map_values&)`	Forward Container	Lexicographical comparison. This is a global function, not a member function.

Notes

[1] A map_values satisfies all the requirements of container, except for the ->() operator of its iterators..