/usr/share/php/kohana3.2/modules/cache/classes/kohana/cache/arithmetic.php is in libkohana3.2-mod-cache-php 3.2.0-1.
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/**
* Kohana Cache Arithmetic Interface, for basic cache integer based
* arithmetic, addition and subtraction
*
* @package Kohana/Cache
* @category Base
* @author Kohana Team
* @copyright (c) 2009-2011 Kohana Team
* @license http://kohanaphp.com/license
* @since 3.2.0
*/
interface Kohana_Cache_Arithmetic {
/**
* Increments a given value by the step value supplied.
* Useful for shared counters and other persistent integer based
* tracking.
*
* @param string id of cache entry to increment
* @param int step value to increment by
* @return integer
* @return boolean
*/
public function increment($id, $step = 1);
/**
* Decrements a given value by the step value supplied.
* Useful for shared counters and other persistent integer based
* tracking.
*
* @param string id of cache entry to decrement
* @param int step value to decrement by
* @return integer
* @return boolean
*/
public function decrement($id, $step = 1);
} // End Kohana_Cache_Arithmetic
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