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-.. highlight:: cpp
-
-.. _lang-comparison:
-
-Comparison Operators (``==``, ``!=``, ``<``, ``>``, ``<=``, ``>=``)
-===================================================================
-
-The comparison operators ``==``, ``!=``, ``<``, ``>``, ``<=``, and
-``>=`` are used to compare two numbers.  They are :ref:`true
-<lang-constants-true>` when the comparison is true, and :ref:`false
-<lang-constants-false>` otherwise.  They are based on the symbols
-=, ≠, <, >, ≤, and ≥ from mathematics.
-
-Here are some examples, with their meaning in comments::
-
-     // "eq" is true when x is equal to y
-     bool eq = (x == y);
-
-     // "neq" is true when x is different than y
-     bool neq = (x != y);
-
-     // "lt" is true when x is less than, but NOT equal to, y
-     bool lt = (x <  y);
-
-     // "gt" is true when x is greater than, but NOT equal to, y
-     bool gt = (x >  y);
-
-     // "lte" is true when x is less than or equal to y
-     bool lte = (x <= y);
-
-     // "gte" is true when x is greater than or equal to y
-     bool gte = (x >= y);
-
-The parentheses are optional; they are present only for clarity.  For
-example, the following two lines are the same::
-
-    bool eq = x == y;
-
-    bool eq = (x == y);
-
-Uses
-----
-
-Comparison operators, along with :ref:`boolean operators
-<lang-boolean>`, are useful inside the conditionals of :ref:`if
-<lang-if>` statements.  Here's one example::
-
-    if (x < 50) {
-       // only execute these lines if x is less than 50
-       SerialUSB.println("delaying:");
-       SerialUSB.println(x);
-       delay(x);
-    }
-
-.. warning::
-   Beware of accidentally using the single equal sign (``=``) when you
-   meant to test if two numbers are equal (``==``).  This is a common
-   mistake inside of ``if`` statement conditionals, e.g.::
-
-       // DON'T MAKE THIS MISTAKE
-       if (x = 10) {
-          // body
-       }
-
-   The single equal sign is the assignment operator, and sets x to 10
-   (puts the value 10 into the variable x).  Instead use the double equal
-   sign (e.g. ``if (x == 10)``), which is the comparison operator, and
-   tests *whether* x is equal to 10 or not. The latter statement is only
-   true if x equals 10, but the former statement will always be true.
-
-   This is because C evaluates the statement ``if (x=10)`` as follows: 10
-   is assigned to x (remember that the single equal sign is the
-   :ref:`assignment operator <lang-assignment>`), so x now
-   contains 10. Then the 'if' conditional evaluates 10, which evaluates
-   to :ref:`true <lang-constants-true>`, since any non-zero number
-   evaluates to ``true``.
-
-   Consequently, the conditional of an ``if`` statement like ``if (x =
-   10) {...}`` will always evaluate to ``true``, and the variable x
-   will be set to 10, which is probably not what you meant.
-
-   (This sometimes has uses, though, so just because an assignment
-   appears within a conditional doesn't mean it's automatically wrong.
-   Be careful to know what you mean.)
-
-.. include:: /arduino-cc-attribution.txt