'use strict';

var Buffer = require('buffer').Buffer; // for use with browserify

module.exports = function (a, b) {
	if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
		return undefined;
	}
	if (typeof a.equals === 'function') {
		return a.equals(b);
	}
	if (a.length !== b.length) {
		return false;
	}

	for (var i = 0; i < a.length; i++) {
		if (a[i] !== b[i]) {
			return false;
		}
	}

	return true;
};