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Revision as of 16:34, 26 November 2015

Revision as of 16:37, 26 November 2015

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===C example 1===

This example<ref>[http://ols.fedoraproject.org/GCC/Reprints-2008/sayle-reprint.pdf "A Superoptimizer Analysis of Multiway Branch Code Generation"] by Roger Anthony Sayle{{dead link}}</ref> of a C function – returning TRUE if a month (x) contains 30 days (otherwise FALSE), illustrates the concept succinctly

<source lang="c">

if (((unsigned)x > 12) || ((unsigned)x <= 0) return 0; /*x>12 or x<=0?*/