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-.. highlight:: cpp
-
-.. _lang-unsignedlong:
-
-``unsigned long``
-=================
-
-An unsigned version of the :ref:`long <lang-long>` data type.  An
-``unsigned long`` occupies 8 bytes of memory; it stores an integer
-from 0 to 2^64-1, which is approximately 1.8×10^19 (18 quintillion, or
-18 billion billion).
-
-Like an :ref:`unsigned int <lang-unsignedint>`, an ``unsigned long``
-won't store negative numbers; it is also subject to the same
-:ref:`overflow issues <lang-int-overflow>` as any integral data type.
-
-Here is an example of declaring an ``unsigned long`` variable named
-``c``, then giving it value 299,792,458,000,000,000 (see :ref:`integer
-constants <lang-constants-integers-u-l>` for an explanation of the "L"
-at the end of the number)::
-
-        // Speed of light in nanometers per second (approximate).
-        unsigned long c = 299792458000000000L;
-
-The general syntax for declaring an ``unsigned long`` variable named
-``var``, then giving it value ``val``, looks like::
-
-        unsigned long var = val;
-
-See Also
---------
-
--  :ref:`long <lang-long>`
--  :ref:`int <lang-int>`
--  :ref:`unsigned <lang-unsignedint>`
--  :ref:`char <lang-char>`
--  :ref:`unsigned char <lang-unsignedchar>`
--  :ref:`Integer Constants <lang-constants-integers>`
--  :ref:`Variables <lang-variables>`
-
-.. include:: cc-attribution.txt