.. efun:: mixed * m_values(mapping map)
  mixed * m_values(mapping map, int index)

  Returns an array with the values of mapping :arg:`map`. If :arg:`index` is given as a number between 0 and the width of the mapping, the values from the given column are returned, else the values of the first column.

  .. usage::

    ::

      mapping m = ([ "foo":1;2;3, "bar":4;5;6, "baz":7;8;9 ])
      m_values(m)    // returns ({ 1, 4, 7 }) or some permutation thereof
      m_values(m, 0) // returns ({ 1, 4, 7 }) (ditto)
      m_values(m, 1) // returns ({ 2, 8, 9 }) (ditto)

  .. note:: The exact order of the values in the resulting arrays is not specified, and may vary after any change to the mapping. The only guarantee given is that if :efun:`m_indices` and :efun:`m_values` are taken at the same time, the order of both results is identical.

  .. seealso:: :efun:`mappingp`, :efun:`mkmapping`, :efun:`m_indices`, :efun:`m_add`, :efun:`m_delete`, :efun:`sizeof`, :efun:`widthof`, :efun:`unmkmapping`.