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author | Perry Hung <iperry@gmail.com> | 2011-01-24 23:23:29 -0500 |
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committer | Perry Hung <iperry@gmail.com> | 2011-01-24 23:23:29 -0500 |
commit | c48689d34809943a5907884bd287cea9ae275352 (patch) | |
tree | d49ff06b0d4b81f6ab0eac8060d178ce7542476c /docs/source/lang/cpp/pointer.rst | |
parent | 64431fd4b59cb8656365f1fad5f679cd4d756239 (diff) | |
parent | a9b2d70bc7799ca96c1673b18fe3012b1a4dd329 (diff) | |
download | librambutan-c48689d34809943a5907884bd287cea9ae275352.tar.gz librambutan-c48689d34809943a5907884bd287cea9ae275352.zip |
Merge remote branch 'leaf/master'
Diffstat (limited to 'docs/source/lang/cpp/pointer.rst')
-rw-r--r-- | docs/source/lang/cpp/pointer.rst | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/docs/source/lang/cpp/pointer.rst b/docs/source/lang/cpp/pointer.rst new file mode 100644 index 0000000..0a42270 --- /dev/null +++ b/docs/source/lang/cpp/pointer.rst @@ -0,0 +1,31 @@ +.. _lang-pointer: + +Pointer Operators (``&``, ``*``) +================================ + +The pointer operators ``&`` (reference) and ``*`` (dereference) are +different from the bitwise math operator :ref:`& +<lang-bitwisemath-and>` and the arithmetic operator :ref:`* +<lang-arithmetic>`. + +Pointers are one of the more complicated subjects for beginners in +learning C, and it is possible to write many useful Arduino sketches +without ever encountering pointers. However, for manipulating certain +data structures, the use of pointers can simplify the code, improve +its efficiency, and generally provide many benefits that would be +difficult to achieve without the use of pointers. + +Introducing pointers is somewhat outside the scope of this +documentation. However, a good `pointer tutorial +<http://www.cplusplus.com/doc/tutorial/pointers/>`_ is available. +Also see the `Wikipedia article on pointers +<http://en.wikipedia.org/wiki/Pointer_%28computing%29>`_, especially +the section on `pointers in C +<http://en.wikipedia.org/wiki/Pointer_%28computing%29#C_pointers>`_. + +See Also +-------- + +- http://xkcd.com/138/ + +.. include:: cc-attribution.txt |