.. SPDX-FileCopyrightText: 2019-2020 Intel Corporation .. .. SPDX-License-Identifier: CC-BY-4.0

============== ContainerRange

[req.container_range]

ContainerRange is a range that represents a concurrent container or a part of the container.

The ContainerRange object can be used to traverse the container in parallel algorithms like parallel_for.

The type CR satisfies the ContainerRange requirements if:

• The type CR meets the requirements of :doc:Range requirements <../algorithms/range>.

• The type CR provides the following member types and functions:

  .. cpp:type:: CR::value_type

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    The type of the item in the range.
  

  .. cpp:type:: CR::reference

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    Reference type to the item in the range.
  

  .. cpp:type:: CR::const_reference

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    Constant reference type to the item in the range.
  

  .. cpp:type:: CR::iterator

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    Iterator type for range traversal.
  

  .. cpp:type:: CR::size_type

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    Unsigned integer type for obtaining grain size.
  

  .. cpp:type:: CR::difference_type

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    The type of the difference between two iterators.
  

  .. cpp:function:: iterator CR::begin()

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    Returns an iterator to the beginning of the range.
  

  .. cpp:function:: iterator CR::end()

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    Returns an iterator to the position that follows the last element in the range.
  

  .. cpp:function:: size_type CR::grainsize() const

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    Returns the range grain size.