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.. highlight:: cpp
.. _lang-while:
``while``
=========
Syntax
------
::
while (expression) {
// block of code
}
Description
-----------
``while`` loops will repeat the statements inside their associated
block of code until the expression inside the parentheses becomes
:ref:`false <lang-constants-false>`. Something must change the tested
expressions' value, or the ``while`` loop will never exit. This could
be in your code, such as an incremented variable, or an external
condition, such as testing a sensor.
Example
-------
::
var = 0;
while(var < 200) {
// do something repetitive 200 times
var++;
}
.. include:: /arduino-cc-attribution.txt
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