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-.. highlight:: cpp
-
-.. _lang-if:
-
-``if``/``else``
-===============
-
-An ``if`` statement is used to execute code when certain conditions
-are met.  The general syntax for an ``if`` statement is::
-
-    if (condition) {
-        body
-    }
-
-An ``if`` statement first tests whether its *condition* is true (such
-as an input being above a certain number).  If the condition is true,
-the ``if`` statement executes its *body*, which is made up of lines of
-code inside :ref:`curly braces <lang-curly-braces>`.  If the condition
-is false, the body is not executed.  Here's a more concrete example::
-
-    if (someVariable > 50) {
-      // do something here
-    }
-
-The program tests to see if ``someVariable`` is greater than 50. If it
-is, the program executes every line in the curly braces (which in the
-above example does nothing, since the body is just the :ref:`comment
-<lang-comments>` line "``// do something here``").
-
-Put another way, if the statement in parentheses is true, the
-statements inside the braces are run. If not, the program skips over
-the code.
-
-An ``if`` statement's condition (which is inside the parentheses after
-``if``) often uses one or more :ref:`boolean <lang-boolean>` or
-:ref:`comparison <lang-comparison>` operators.
-
-Writing the if Body
--------------------
-
-The brackets may be omitted after an ``if`` statement's
-conditional. If this is done, the next line (which ends in a
-semicolon) becomes the only line in the body.  The following three
-``if`` statements all do the same thing::
-
-    if (x > 120) digitalWrite(pin, HIGH);
-
-    if (x > 120)
-        digitalWrite(pin, HIGH);
-
-    if (x > 120) {
-        digitalWrite(pin, HIGH);
-    }
-
-However, the following two examples are different::
-
-    // example 1: two lines of code in the if body
-    if (x > 120) {
-      digitalWrite(pin1, HIGH);
-      digitalWrite(pin2, HIGH);
-    }
-
-    // example 2: one line of code in the if body, and
-    // another line of code after the if statement
-    if (x > 120)
-      digitalWrite(pin1, HIGH); // this is in the if body
-      digitalWrite(pin2, HIGH); // this is NOT in the if body
-
-In the first example, since the body is enclosed in curly braces, both
-lines are included.  In the second example, since the curly braces are
-missing, only the first line is in the ``if`` body.
-
-``else``
---------
-
-``if``/\ ``else`` allows greater control over the flow of code than
-the basic :ref:`if <lang-if>` statement, by allowing multiple tests to
-be grouped together. For example, an :ref:`analog input
-<lang-analogread>` could be tested, with one action taken if the input
-was less than 500, and another action taken if the input was 500 or
-greater. The code would look like this::
-
-    if (pinFiveInput < 500) {
-      // action A
-    } else {
-      // action B
-    }
-
-``else`` can precede another ``if`` test, so that multiple, mutually
-exclusive tests can be run at the same time.
-
-Each test will proceed to the next one until a true test is
-encountered. When a true test is found, its associated block of code
-is run, and the program then skips to the line following the entire
-if/else construction. If no test proves to be true, the default
-``else`` block is executed, if one is present, and sets the default
-behavior.
-
-Note that an ``else if`` block may be used with or without a
-terminating ``else`` block, and vice-versa. An unlimited number of
-such ``else if`` branches is allowed.  Here is a code example::
-
-    if (pinFiveInput < 500) {
-      // do Thing A
-    } else if (pinFiveInput >= 1000) {
-      // do Thing B
-    } else {
-      // do Thing C
-    }
-
-Another way to express branching, mutually exclusive tests, is with a
-:ref:`switch/case <lang-switchcase>` statement.
-
-
-See Also
---------
-
-- :ref:`boolean operators <lang-boolean>`
-- :ref:`comparison operators <lang-comparison>`
-
-.. include:: /arduino-cc-attribution.txt