Associative containers

In computing, associative containers refer to a group of class templates in the standard library of the C++ programming language that implement ordered associative arrays. Being templates, they can be used to store arbitrary elements, such as integers or custom classes. The following containers are defined in the current revision of the C++ standard: set, map, multiset, multimap. Each of these containers differ only on constraints placed on their elements.

The associative containers are similar to the unordered associative containers in C++ standard library, the only difference is that the unordered associative containers, as their name implies, do not order their elements.

Design

Characteristics

  • Key uniqueness: in map and set each key must be unique. multimap and multiset do not have this restriction.
  • Element composition: in map and multimap each element is composed from a key and a mapped value. In set and multiset each element is key; there are no mapped values.
  • Element ordering: elements follow a strict weak ordering
  • Map

    A map is a symbolic depiction highlighting relationships between elements of some space, such as objects, regions, and themes.

    Many maps are static two-dimensional, geometrically accurate (or approximately accurate) representations of three-dimensional space, while others are dynamic or interactive, even three-dimensional. Although most commonly used to depict geography, maps may represent any space, real or imagined, without regard to context or scale; e.g. brain mapping, DNA mapping and extraterrestrial mapping.

    Although the earliest maps known are of the heavens, geographic maps of territory have a very long tradition and exist from ancient times. The word "map" comes from the medieval Latin Mappa mundi, wherein mappa meant napkin or cloth and mundi the world. Thus, "map" became the shortened term referring to a two-dimensional representation of the surface of the world.

    Geographic maps

    Cartography or map-making is the study and practice of crafting representations of the Earth upon a flat surface (see History of cartography), and one who makes maps is called a cartographer.

    Maap

    Maap (Yapese: Maap′) is an island and village and municipality in the state of Yap, Federated States of Micronesia. It lies on the north east of the archipelago of Yap.

    Climate

    References

  • Statoids.com, retrieved February 13, 2015
  • Coordinates: 9°36′04″N 138°09′54″E / 9.601°N 138.165°E / 9.601; 138.165

    Map (band)

    Map is an indie pop band from Riverside, CA that consists of Josh Dooley (guitar, Voice, Harmonica), Paul Akers (Keyboards) and Trevor Monks (drums).

    Biography

    Josh Dooley formed Map in 2000, recording two EPs, Teaching Turtles to Fly, and Eastern Skies, Western Eyes.

    Map released their first full length record, Secrets By The Highway, in 2003.

    In the summer of 2004, Map released their second full length record, Think Like An Owner. This album was his first record backed by his current band line-up, consisting of Loop (bass), Heather Bray (guitar, voice) and Ben Heywood (drums).

    Map released their third EP, San Francisco in the 90s, with more additions to their band line-up, consisting of Paul Akers (keyboards) and Trevor Monks (drums). This album gives tribute to late-80s Brit pop and mid-60s American jangle rock.

    Discography

    Full-length albums

  • Secrets By the Highway (2003, Velvet Blue Music)
  • Think Like an Owner (2004, Velvet Blue Music)
  • Speechless (2009, Velvet Blue Music)
  • Pistols & Pearls (2010, Independent)
  • Podcasts:

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