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diff --git a/source/arduino/unsignedint.rst b/source/arduino/unsignedint.rst deleted file mode 100644 index 11412b1..0000000 --- a/source/arduino/unsignedint.rst +++ /dev/null @@ -1,80 +0,0 @@ -.. _arduino-unsignedint: - -unsigned int -============ - -Description ------------ - -Unsigned ints (unsigned integers) are the same as ints in that they -store a 2 byte value. Instead of storing negative numbers however -they only store positive values, yielding a useful range of 0 to -65,535 (2^16) - 1). - - - -The difference between unsigned ints and (signed) ints, lies in the -way the highest bit, sometimes refered to as the "sign" bit, is -interpreted. In the Arduino int type (which is signed), if the high -bit is a "1", the number is interpreted as a negative number, and -the other 15 bits are interpreted with -`2's complement math. <http://en.wikipedia.org/wiki/2's_complement>`_ - - - -Example -------- - -:: - - unsigned int ledPin = 13; - - - -Syntax ------- - -:: - - unsigned int var = val; - - - - -- var - your unsigned int variable name -- val - the value you assign to that variable - - - -Coding Tip ----------- - -When variables are made to exceed their maximum capacity they "roll -over" back to their minimum capacitiy, note that this happens in -both directions - - - -:: - - unsigned int x - x = 0; - x = x - 1; // x now contains 65535 - rolls over in neg direction - x = x + 1; // x now contains 0 - rolls over - - - -See Also --------- - - -- `byte <http://arduino.cc/en/Reference/Byte>`_ -- `int <http://arduino.cc/en/Reference/Int>`_ -- `long <http://arduino.cc/en/Reference/Long>`_ -- `unsigned long <http://arduino.cc/en/Reference/UnsignedLong>`_ -- `Variable Declaration <http://arduino.cc/en/Reference/VariableDeclaration>`_ - - - - -.. include:: cc-attribution.txt
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