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authorPerry Hung <iperry@gmail.com>2011-01-24 23:23:29 -0500
committerPerry Hung <iperry@gmail.com>2011-01-24 23:23:29 -0500
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-.. _arduino-switchcase:
-
-switch / case statements
-========================
-
-Like **if** statements, **switch...case** controls the flow of
-programs by allowing programmers to specify different code that
-should be executed in various conditions. In particular, a switch
-statement compares the value of a variable to the values specified
-in case statements. When a case statement is found whose value
-matches that of the variable, the code in that case statement is
-run.
-
-
-
-The **break** keyword exits the switch statement, and is typically
-used at the end of each case. Without a break statement, the switch
-statement will continue executing the following expressions
-("falling-through") until a break, or the end of the switch
-statement is reached.
-
-
-
-Example
-~~~~~~~
-
-::
-
- switch (var) {
- case 1:
- //do something when var equals 1
- break;
- case 2:
- //do something when var equals 2
- break;
- default:
- // if nothing else matches, do the default
- // default is optional
- }
-
-
-
-Syntax
-~~~~~~
-
-::
-
- switch (var) {
- case label:
- // statements
- break;
- case label:
- // statements
- break;
- default:
- // statements
- }
-
-
-
-Parameters
-~~~~~~~~~~
-
-var: the variable whose value to compare to the various cases
-
-
-
-label: a value to compare the variable to
-
-
-
-See also:
----------
-
-`if...else <http://arduino.cc/en/Reference/Else>`_
-
-