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+.. highlight:: cpp
+
+.. _lang-return:
+
+return
+======
+
+(Keyword) Terminates a function and return a value from a function to
+the calling function, if the function has non-``void`` return type.
+
+Syntax:
+-------
+
+::
+
+    // from within a "void" function:
+    return;
+
+    // from within a non-"void" function:
+    return value;
+
+In the second case, ``value`` should have a type which is the same as
+the return type of the function, or be convertible to it (like an
+``int`` to a ``long``, etc.; see :ref:`this note
+<lang-arithmetic-typeconversion>` for some references).
+
+Examples:
+---------
+
+A function to compare a sensor input to a threshold::
+
+     // converts analog readings between 0 and 400 to 0, and 400 up to 1.
+     int checkSensor() {
+        if (analogRead(0) > 400) {
+            return 1;
+        else {
+            return 0;
+        }
+    }
+
+An early ``return`` is also useful when testing a section of code
+without having to "comment out" large sections of possibly buggy code,
+like so::
+
+    void loop() {
+
+        // brilliant code idea to test here
+
+        return;
+
+        // the rest of a dysfunctional sketch here
+        // this code will never be executed
+    }
+
+See Also
+--------
+
+- :ref:`comments <lang-comments>`
+
+
+.. include:: cc-attribution.txt