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diff --git a/docs/source/arduino/booleanvariables.rst b/docs/source/arduino/booleanvariables.rst deleted file mode 100644 index a5f2c51..0000000 --- a/docs/source/arduino/booleanvariables.rst +++ /dev/null @@ -1,55 +0,0 @@ -.. highlight:: cpp - -.. _arduino-booleanvariables: - -Booleans -======== - -A **boolean** holds one of two values, :ref:`true -<arduino-constants-true>` or :ref:`false <arduino-constants-false>`. -On a Maple, each boolean variable occupies one byte of memory, and has -type ``bool``. - -.. warning:: - - On an Arduino, the type ``boolean`` is also provided. While the - Maple also has this type for compatibility, **its use is strongly - discouraged**. The ``bool`` type is a standard part of C++, while - ``boolean`` is a non-standard extension that serves no purpose. - -Example -------- - -:: - - int ledPin = 13; // LED on pin 13 - int switchPin = 12; // momentary switch on 12, other side connected to ground - - // running is a boolean variable: - bool running = false; - - void setup() { - pinMode(ledPin, OUTPUT); - pinMode(switchPin, INPUT); - digitalWrite(switchPin, HIGH); // turn on pullup resistor - } - - void loop() { - if (digitalRead(switchPin) == LOW) { - // switch is pressed - pullup keeps pin high normally - delay(100); // delay to debounce switch - running = !running; // toggle running variable - digitalWrite(ledPin, running) // indicate via LED - } - } - -See also --------- - - -- :ref:`Boolean constants <arduino-constants-bool>` -- :ref:`Boolean operators <arduino-boolean>` -- :ref:`Variables <arduino-variables>` - - -.. include:: cc-attribution.txt
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