examples/include/stocks.h - stdcxx - Git at Google

 /**************************************************************************
  *
  * stocks.h - Stocks program.
  *
  * $Id$
  *
  ***************************************************************************
  *
  * Licensed to the Apache Software  Foundation (ASF) under one or more
  * contributor  license agreements.  See  the NOTICE  file distributed
  * with  this  work  for  additional information  regarding  copyright
  * ownership.   The ASF  licenses this  file to  you under  the Apache
  * License, Version  2.0 (the  "License"); you may  not use  this file
  * except in  compliance with the License.   You may obtain  a copy of
  * the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the  License is distributed on an  "AS IS" BASIS,
  * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
  * implied.   See  the License  for  the  specific language  governing
  * permissions and limitations under the License.
  *
  * Copyright 1994-2006 Rogue Wave Software.
  *
  **************************************************************************/

 #ifndef STOCKS_H_INCLUDED
 #define STOCKS_H_INCLUDED

 #include <ctime>
 #include <locale>
 #include <string>
 #include <deque>
 #include <stdexcept>
 #include <iterator>
 #include <sstream>

 #include <examples.h>


 // The stock exchange example displays stock quotes at various exchanges
 // distributed globally.

 // The objective of the example is to show monetary, numeric, and date
 // and time values formated using standard and/or user-defined facets.


 #if defined (_AIX)
 #  define US_LOCALE             "en_US"
 #  define GERMAN_LOCALE         "de_DE"
 #  define FRENCH_LOCALE         "fr_FR"
 #  define JAPANESE_LOCALE       "ja_JP"
 #elif defined (__hpux)
 #  define US_LOCALE             "en_US.iso88591"
 #  define GERMAN_LOCALE         "de_DE.iso88591"
 #  define FRENCH_LOCALE         "fr_FR.iso88591"
 #  define JAPANESE_LOCALE       "ja_JP.eucJP"
 #elif defined (__linux__)
 #  define US_LOCALE             "en_US"
 #  define GERMAN_LOCALE         "de_DE"
 #  define FRENCH_LOCALE         "fr_FR"
 #  define JAPANESE_LOCALE       "ja_JP"
 #elif defined (__osf__)
 #  define US_LOCALE             "en_US.ISO8859-1"
 #  define GERMAN_LOCALE         "de_DE.ISO8859-1"
 #  define FRENCH_LOCALE         "fr_FR.ISO8859-1"
 #  define JAPANESE_LOCALE       "ja_JP"
 #elif defined (SNI)
 #  define US_LOCALE             "En"
 #  define GERMAN_LOCALE         "De"
 #  define FRENCH_LOCALE         "Fr_FR.850"
 #  define JAPANESE_LOCALE       "Ja_JP.932"
 #elif defined (_WIN32)
 #  define US_LOCALE             "us"
 #  define GERMAN_LOCALE         "german_germany.1252"
 #  define FRENCH_LOCALE         "french_france.1252"
 #  define JAPANESE_LOCALE       "japanese_japan.1252"
 #else   // POSIX simple names
 #  define US_LOCALE             "en_US"
 #  define GERMAN_LOCALE         "de_DE"
 #  define FRENCH_LOCALE         "fr_FR"
 #  define JAPANESE_LOCALE       "ja_JP"
 #endif


 namespace {
     const int stock_change[10] = { 0, 1, -1, 2, -1, 3, -3, 4, -1, -1 };
     const int indexSize = 10;
     struct std::tm tmb;
 }


 struct Company
 {
    Company (const std::string &s, double p)
        : companyName (s), offerPrice (p), stockPrice (0) {}

    //In actuality a company should not manipulate stocks.
    //For simplicity let the company play with its own stock.

    void updateStock () {
       stockPrice = offerPrice + stockChange();
       if (stockPrice < 0)
           stockPrice = -(stockPrice);
    }

    int stockChange () {
        return stock_change[changeIndex(true)];
    }

    int changeIndex (bool increment = false) {
        static int i = 0;
        if(increment)
            ++i;
        if (i > indexSize-1)
            i = 0;
        return i;
    }

    std::string companyName;
    double      offerPrice;  //initial offer price
    double      stockPrice;  //current market price

 private:
    std::string companyNews; //Make use of messaging (if at all it works !)

    std::size_t marketOutlook() {
        return changeIndex();
    }
 };


 struct StockXchange: public std::locale::facet
 {
    typedef std::basic_ostream<char,std::char_traits<char> > outStream;
    typedef std::ostreambuf_iterator<char, std::char_traits<char> > iter_type;
    typedef std::deque<Company*,std::allocator<Company*> > database;

    typedef std::locale::facet facet;

    StockXchange(std::size_t refs=0): facet(refs){}
    virtual ~StockXchange();

    static std::locale::id id;
    virtual bool put (std::ostream& os) const;
    virtual void add (const std::string& name, double initPrice);
    virtual void localTime (std::ostream&) const;

 protected:
    database companyDatabase;

    friend StockXchange::outStream&
    operator<< (StockXchange::outStream&, const StockXchange&);
 };


 struct TokyoStockXchange: public StockXchange
 {
     TokyoStockXchange (std::size_t refs = 0)
         : StockXchange (refs) { }

     virtual void localTime (std::ostream& os) const {
         // our contrived GMT time is 07:43:00, to use an actual time,
         // replace the following tmb assignments with:
         // tmb = std::gmtime (&tm);
         tmb.tm_sec   =   0;
         tmb.tm_min   =  43;
         tmb.tm_hour  =   7;
         tmb.tm_mday  =   4;
         tmb.tm_mon   =   6;
         tmb.tm_year  =  88;
         tmb.tm_wday  =   1;
         tmb.tm_yday  = 185;
         tmb.tm_isdst =   1;

         StockXchange::localTime(os);
      }

     virtual bool put (std::ostream& os) const {
        os << '\n';
        os << "######## TOKYO STOCK EXCHANGE #########\n";
        return StockXchange::put (os);
      }
 };


 struct FrankfurtStockXchange: public StockXchange
 {
     FrankfurtStockXchange (std::size_t refs = 0)
         : StockXchange (refs) { }

     virtual void localTime(std::ostream& os) const {
        // our contrived GMT time is 07:43:00, to use an actual time, replace
        // the following three tmb assignments with:
        // tmb = gmtime(&tm);
        tmb.tm_hour=7;
        tmb.tm_min=43;
        tmb.tm_sec=00;
        StockXchange::localTime(os);
      }

     virtual bool put (std::ostream& os) const {
        os << '\n';
        os << "######## FRANKFURTER WERTPAPIERB\366RSE #########\n";
        return StockXchange::put (os);
      }
 };


 struct NewYorkStockXchange: public StockXchange
 {
     NewYorkStockXchange (std::size_t refs = 0)
         : StockXchange (refs) { }

     virtual void localTime(std::ostream& os) const {
        // our contrived GMT time is 07:43:00, for a GMT-5 of 02:43:00
        // to use an actual time, replace the following three tmb
        // assignments with:
        // tmb = localtime(&tm);
        tmb.tm_hour=2;
        tmb.tm_min=43;
        tmb.tm_sec=00;
        StockXchange::localTime(os);
      }

     virtual bool put (std::ostream& os) const {
        os << '\n';
        os << "######## NEW YORK STOCK EXCHANGE ########\n";
        return StockXchange::put (os);
      }
 };


 struct ParisStockXchange: public StockXchange
 {
     ParisStockXchange (std::size_t refs = 0)
         : StockXchange (refs){}

     virtual void localTime(std::ostream& os) const {
        // our contrived GMT time is 07:43:00, to use an actual time, replace
        // the following three tmb assignments with:
        // tmb = gmtime(&tm);
        tmb.tm_hour=7;
        tmb.tm_min=43;
        tmb.tm_sec=00;
        StockXchange::localTime(os);
     }

     virtual bool put (std::ostream& os) const {
        os << '\n';
        os << "######## BOURSE DE PARIS #########\n";
        return StockXchange::put (os);
      }
 };

 #endif   // STOCKS_H_INCLUDED
	/**************************************************************************
	*
	* stocks.h - Stocks program.
	*
	* $Id$
	*
	***************************************************************************
	*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed
	* with this work for additional information regarding copyright
	* ownership. The ASF licenses this file to you under the Apache
	* License, Version 2.0 (the "License"); you may not use this file
	* except in compliance with the License. You may obtain a copy of
	* the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
	* implied. See the License for the specific language governing
	* permissions and limitations under the License.
	*
	* Copyright 1994-2006 Rogue Wave Software.
	*
	**************************************************************************/

	#ifndef STOCKS_H_INCLUDED
	#define STOCKS_H_INCLUDED

	#include <ctime>
	#include <locale>
	#include <string>
	#include <deque>
	#include <stdexcept>
	#include <iterator>
	#include <sstream>

	#include <examples.h>


	// The stock exchange example displays stock quotes at various exchanges
	// distributed globally.

	// The objective of the example is to show monetary, numeric, and date
	// and time values formated using standard and/or user-defined facets.


	#if defined (_AIX)
	# define US_LOCALE "en_US"
	# define GERMAN_LOCALE "de_DE"
	# define FRENCH_LOCALE "fr_FR"
	# define JAPANESE_LOCALE "ja_JP"
	#elif defined (__hpux)
	# define US_LOCALE "en_US.iso88591"
	# define GERMAN_LOCALE "de_DE.iso88591"
	# define FRENCH_LOCALE "fr_FR.iso88591"
	# define JAPANESE_LOCALE "ja_JP.eucJP"
	#elif defined (__linux__)
	# define US_LOCALE "en_US"
	# define GERMAN_LOCALE "de_DE"
	# define FRENCH_LOCALE "fr_FR"
	# define JAPANESE_LOCALE "ja_JP"
	#elif defined (__osf__)
	# define US_LOCALE "en_US.ISO8859-1"
	# define GERMAN_LOCALE "de_DE.ISO8859-1"
	# define FRENCH_LOCALE "fr_FR.ISO8859-1"
	# define JAPANESE_LOCALE "ja_JP"
	#elif defined (SNI)
	# define US_LOCALE "En"
	# define GERMAN_LOCALE "De"
	# define FRENCH_LOCALE "Fr_FR.850"
	# define JAPANESE_LOCALE "Ja_JP.932"
	#elif defined (_WIN32)
	# define US_LOCALE "us"
	# define GERMAN_LOCALE "german_germany.1252"
	# define FRENCH_LOCALE "french_france.1252"
	# define JAPANESE_LOCALE "japanese_japan.1252"
	#else // POSIX simple names
	# define US_LOCALE "en_US"
	# define GERMAN_LOCALE "de_DE"
	# define FRENCH_LOCALE "fr_FR"
	# define JAPANESE_LOCALE "ja_JP"
	#endif


	namespace {
	const int stock_change[10] = { 0, 1, -1, 2, -1, 3, -3, 4, -1, -1 };
	const int indexSize = 10;
	struct std::tm tmb;
	}


	struct Company
	{
	Company (const std::string &s, double p)
	: companyName (s), offerPrice (p), stockPrice (0) {}

	//In actuality a company should not manipulate stocks.
	//For simplicity let the company play with its own stock.

	void updateStock () {
	stockPrice = offerPrice + stockChange();
	if (stockPrice < 0)
	stockPrice = -(stockPrice);
	}

	int stockChange () {
	return stock_change[changeIndex(true)];
	}

	int changeIndex (bool increment = false) {
	static int i = 0;
	if(increment)
	++i;
	if (i > indexSize-1)
	i = 0;
	return i;
	}

	std::string companyName;
	double offerPrice; //initial offer price
	double stockPrice; //current market price

	private:
	std::string companyNews; //Make use of messaging (if at all it works !)

	std::size_t marketOutlook() {
	return changeIndex();
	}
	};


	struct StockXchange: public std::locale::facet
	{
	typedef std::basic_ostream<char,std::char_traits<char> > outStream;
	typedef std::ostreambuf_iterator<char, std::char_traits<char> > iter_type;
	typedef std::deque<Company,std::allocator<Company> > database;

	typedef std::locale::facet facet;

	StockXchange(std::size_t refs=0): facet(refs){}
	virtual ~StockXchange();

	static std::locale::id id;
	virtual bool put (std::ostream& os) const;
	virtual void add (const std::string& name, double initPrice);
	virtual void localTime (std::ostream&) const;

	protected:
	database companyDatabase;

	friend StockXchange::outStream&
	operator<< (StockXchange::outStream&, const StockXchange&);
	};


	struct TokyoStockXchange: public StockXchange
	{
	TokyoStockXchange (std::size_t refs = 0)
	: StockXchange (refs) { }

	virtual void localTime (std::ostream& os) const {
	// our contrived GMT time is 07:43:00, to use an actual time,
	// replace the following tmb assignments with:
	// tmb = std::gmtime (&tm);
	tmb.tm_sec = 0;
	tmb.tm_min = 43;
	tmb.tm_hour = 7;
	tmb.tm_mday = 4;
	tmb.tm_mon = 6;
	tmb.tm_year = 88;
	tmb.tm_wday = 1;
	tmb.tm_yday = 185;
	tmb.tm_isdst = 1;

	StockXchange::localTime(os);
	}

	virtual bool put (std::ostream& os) const {
	os << '\n';
	os << "######## TOKYO STOCK EXCHANGE #########\n";
	return StockXchange::put (os);
	}
	};


	struct FrankfurtStockXchange: public StockXchange
	{
	FrankfurtStockXchange (std::size_t refs = 0)
	: StockXchange (refs) { }

	virtual void localTime(std::ostream& os) const {
	// our contrived GMT time is 07:43:00, to use an actual time, replace
	// the following three tmb assignments with:
	// tmb = gmtime(&tm);
	tmb.tm_hour=7;
	tmb.tm_min=43;
	tmb.tm_sec=00;
	StockXchange::localTime(os);
	}

	virtual bool put (std::ostream& os) const {
	os << '\n';
	os << "######## FRANKFURTER WERTPAPIERB\366RSE #########\n";
	return StockXchange::put (os);
	}
	};


	struct NewYorkStockXchange: public StockXchange
	{
	NewYorkStockXchange (std::size_t refs = 0)
	: StockXchange (refs) { }

	virtual void localTime(std::ostream& os) const {
	// our contrived GMT time is 07:43:00, for a GMT-5 of 02:43:00
	// to use an actual time, replace the following three tmb
	// assignments with:
	// tmb = localtime(&tm);
	tmb.tm_hour=2;
	tmb.tm_min=43;
	tmb.tm_sec=00;
	StockXchange::localTime(os);
	}

	virtual bool put (std::ostream& os) const {
	os << '\n';
	os << "######## NEW YORK STOCK EXCHANGE ########\n";
	return StockXchange::put (os);
	}
	};


	struct ParisStockXchange: public StockXchange
	{
	ParisStockXchange (std::size_t refs = 0)
	: StockXchange (refs){}

	virtual void localTime(std::ostream& os) const {
	// our contrived GMT time is 07:43:00, to use an actual time, replace
	// the following three tmb assignments with:
	// tmb = gmtime(&tm);
	tmb.tm_hour=7;
	tmb.tm_min=43;
	tmb.tm_sec=00;
	StockXchange::localTime(os);
	}

	virtual bool put (std::ostream& os) const {
	os << '\n';
	os << "######## BOURSE DE PARIS #########\n";
	return StockXchange::put (os);
	}
	};

	#endif // STOCKS_H_INCLUDED