From 5ceac644e90c929e77f05d357d1d35d45e673fac Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Fri, 3 Dec 2010 20:18:00 -0500 Subject: cleaning up previous commits. note that addition of new files under docs/source/lang/api and docs/source/lang/cpp which were just copies of files in docs/source/lang/ imply that change history is lost to git. --- docs/source/lang/int.rst | 64 ------------------------------------------------ 1 file changed, 64 deletions(-) delete mode 100644 docs/source/lang/int.rst (limited to 'docs/source/lang/int.rst') diff --git a/docs/source/lang/int.rst b/docs/source/lang/int.rst deleted file mode 100644 index ca75f75..0000000 --- a/docs/source/lang/int.rst +++ /dev/null @@ -1,64 +0,0 @@ -.. highlight:: cpp - -.. _lang-int: - -``int`` -======= - -The ``int`` data type represents integers. Integers are your primary -data type for number storage, and store a 4 byte value. This yields a -range of -2,147,483,648 to 2,147,483,647 (minimum value of -2^31 and a -maximum value of (2^31) - 1; that's about negative 2 billion to -positive 2 billion). - -An ``int`` stores a negative number with a technique called `two's -complement math -`_\ . -The highest bit in an ``int``, sometimes refered to as the "sign" bit, -flags the number as a negative number. (See the linked article on -two's complement for more information). - -The Maple takes care of dealing with negative numbers for you, so that -arithmetic operations work mostly as you'd expect. There can be an -:ref:`unexpected complication ` in -dealing with the :ref:`bitshift right operator (>>) -`, however. - -Here is an example of declaring an ``int`` variable named ``ledPin``, -then giving it value 13:: - - int ledPin = 13; - -The general syntax for declaring an ``int`` variable named ``var``, -then giving it value ``val``, looks like:: - - int var = val; - -.. _lang-int-overflow: - -Integer Overflow ----------------- - -When ``int`` variables leave the range specified above, they -:ref:`roll over ` in the other direction. -Here are some examples:: - - int x; - x = -2,147,483,648; - x--; // x now contains 2,147,483,647; rolled over "left to right" - - x = 2,147,483,647; - x++; // x now contains -2,147,483,648; rolled over "right to left" - -See Also --------- - -- :ref:`unsigned int ` -- :ref:`char ` -- :ref:`unsigned char ` -- :ref:`long ` -- :ref:`unsigned long ` -- :ref:`Integer Constants ` -- :ref:`Variables ` - -.. include:: cc-attribution.txt -- cgit v1.2.3