tastypie/node_modules/mout/number/rol.js

Tastypie is a webservice API framework for Node.js based on Django's Tastypie Framework. It provides a convenient, yet powerful and highly customizable, abstraction for creating REST-style interfaces

    /**
     * Bitwise circular shift left
     * http://en.wikipedia.org/wiki/Circular_shift
     */
    function rol(val, shift){
        return (val << shift) | (val >> (32 - shift));
    }
    module.exports = rol;