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//
// VMime library (http://vmime.sourceforge.net)
// Copyright (C) 2002-2004 Vincent Richard <[email protected]>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef VMIME_UTILITY_RANDOM_HPP_INCLUDED
#define VMIME_UTILITY_RANDOM_HPP_INCLUDED
#include "types.hpp"
namespace vmime {
namespace utility {
/** Pseudo-random number generator.
*/
class random
{
public:
/** Return a new random number.
*
* @return random number
*/
static const unsigned int getNext();
/** Return the current time as a number (may be used to
* build "random" strings).
*
* @return time as a number
*/
static const unsigned int getTime();
/** Return the current process number (may be user to
* build "random" strings).
*
* @return process number
*/
static const unsigned int getProcess();
/** Return a random character string with the specified length.
*
* @param length length of the string to generate
* @param randomChars list of characters to use
* @return random string
*/
static const string getString(const int length, const string& randomChars
= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
protected:
static unsigned int m_next;
};
} // utility
} // vmime
#endif // VMIME_UTILITY_RANDOM_HPP_INCLUDED
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