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/home/vlg/develop/gwavmerger/src/SerialNumber.cpp

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// -*- c++ -*-
//------------------------------------------------------------------------------
//                           SerialNumber.cpp
//------------------------------------------------------------------------------
// $Id: SerialNumber.cpp,v 1.3 2003/02/07 05:15:10 vlg Exp $
//------------------------------------------------------------------------------
//  Copyright (c) 2002 by Vladislav Grinchenko
//
//  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.
//------------------------------------------------------------------------------
// Created: 07/30/2002
//------------------------------------------------------------------------------

#include <sstream>
#include <iomanip>

#include "SerialNumber.h"


SerialNumber::SerialNumber (u_int base_, const string& prefix_, 
              const string postfix_, size_t size_)
    :
    m_prefix (prefix_), m_postfix (postfix_), m_size (size_+base_), 
    m_current (base_), m_width (1)
{
    int j = 10;
    while (m_size >= j) {
        m_width++;
        j *= 10;
    }
}

SerialNumber

SerialNumber::operator++ ()
{
    if (m_current < m_size) {
        m_current++;
    }
    return *this;
}

SerialNumber

SerialNumber::operator++ (int)
{
    SerialNumber sn = *this;
    ++*this;
    return sn;
}


SerialNumber::operator string ()
{
    std::ostringstream os;
    os.setf (std::ios::right);
    os.fill ('0');

    os << m_prefix << std::setw (m_width) << m_current << m_postfix;

    return os.str ();
}

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