Glossary
========

.. glossary::

   stream
      An object that reads or writes a sequence of characters.

   parsing
      Interpreting input according to an expected structure.

   array
      A fixed-size sequence. ``std::array`` stores its extent in its type.

   vector
      A sequence whose size can change at run time.

   size
      The number of elements currently stored in a container.

   capacity
      For a vector, the number of elements its allocated storage can hold.

   set
      A collection of unique keys. ``std::set`` keeps them in sorted order.

   map
      A collection of key-value pairs with unique keys. ``std::map`` keeps
      pairs sorted by key.

   iterator
      An object used to refer to and traverse container elements. The
      past-the-end iterator is a sentinel, not an element to dereference.