Carnegie Mellon University
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Ranged Integers for the C Programming Language

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posted on 2007-09-01, 00:00 authored by Jeff Gennari, Shaun Hedrick, Frederick W. Long, Justin Pincar, Robert C. Seacord
This report describes an extension to the C programming language to introduce the notion of ranged integers, that is, integer types with a defined range of values. A variable of a ranged integer type will always have a value within the defined range as a result of initialization or assignment. Use of ranged integers would help prevent integer overflow errors and thus would result in more reliable and secure C programs. The syntax and semantics of ranged integers are presented, and some examples are given to illustrate their use.




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