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-.. highlight:: cpp
-
-.. _arduino-scope:
-
-Variable Scope
-==============
-
-Variables in the C++ programming language, which Maple uses (all of
-your sketches are C++ programs in disguise), have a property called
-*scope*. This is in contrast to languages such as BASIC where every
-variable is a *global* variable.
-
-A global variable is one that can be "seen" by every function in a
-program. Local variables are only usable within the function in which
-they are declared. In the :ref:`Maple IDE <ide>`, any variable
-declared outside of a function (like :ref:`setup() <arduino-setup>`,
-:ref:`loop() <arduino-loop>`, etc.), is a global variable.
-
-When programs start to get larger and more complex, local variables
-are a useful way to ensure that a function has exclusive access to its
-own variables.  This prevents programming errors when one function
-inadvertently modifies variables used by another function.
-
-It is also sometimes useful to declare and initialize a variable
-inside a :ref:`for <arduino-for>` loop. This creates a variable that
-can only be accessed from inside the loop body.
-
-Scope in C++ is actually a fairly complex topic.  More information is
-available in the `C++ programming Wikibook
-<http://en.wikibooks.org/wiki/C%2B%2B_Programming/Programming_Languages/C%2B%2B/Code/Statements/Scope>`_.
-
-Example:
---------
-
-::
-
-    int globalVar;  // any function will see this variable
-
-    void setup() {
-      // ...
-    }
-
-    void loop() {
-      int i;    // "i" is only "visible" inside of "loop"
-      float f;  // "f" is only "visible" inside of "loop"
-      // ...
-
-      for (int j = 0; j <100; j++){
-          // variable j can only be accessed inside the for-loop brackets
-          i = j * j;
-      }
-      i = globalVar; // globalVar can be accessed from anywhere, including loop()
-    }
-
-See Also
---------
-
-- `C++ programming Wikibook <http://en.wikibooks.org/wiki/C%2B%2B_Programming/Programming_Languages/C%2B%2B/Code/Statements/Scope>`_.
-- Wikipedia article on `scope <http://en.wikipedia.org/wiki/Scope_%28programming%29>`_
-
-
-.. include:: cc-attribution.txt
-\ No newline at end of file