As-gui Sources / file revision

 //

 //  OSSP asgui - Accounting system graphical user interface

 //  Copyright (c) 2002-2009 The OSSP Project (http://www.ossp.org/)

 //  Copyright (c) 2002-2009 Ralf S. Engelschall <rse@engelschall.com>

 //  Copyright (c) 2002-2009 Michael Schloh von Bennewitz <michael@schloh.com>

 //  Copyright (c) 2002-2009 Cable & Wireless Telecommunications Services GmbH

 //

 //  This file is part of OSSP asgui, an accounting system graphical user

 //  interface which can be found at http://asgui.europalab.com/.

 //

 //  Permission to use, copy, modify, and distribute this software for

 //  any purpose with or without fee is hereby granted, provided that

 //  the above copyright notice and this permission notice appear in all

 //  copies.

 //

 //  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED

 //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 //  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 //  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR

 //  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 //  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 //  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 //  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 //  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

 //  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT

 //  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 //  SUCH DAMAGE.

 //

 //  as_rand.h: ISO C++ interface

 //

 #ifndef RAND_H

 #define RAND_H

 #ifdef HAVE_CONFIG_H

 #include "ac_config.h"

 #endif

 namespace AS {

 //

 // Generates (multiple) random numbers, using the

 // system standard random devices or a choppy

 // home made algorythm if no devices exist

 //

 class Rand

 {

 private:

     int nFd;                    // File descriptor of random device

 public:

     Rand(void);                 // Constructor

     ~Rand(void);                // Destructor

     void genData(void *, int);  // Generates a number

 private:

     void openDevice(void);      // Opens the random device

     void closeDevice(void);     // Closes the random device

 };

 }

 #endif // RAND_H