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- /**************************************************************************
- *
- * stocks.h - Stocks program.
- *
- ***************************************************************************
- *
- * (c) Copyright 1994, 1998 Rogue Wave Software, Inc.
- * ALL RIGHTS RESERVED
- *
- * The software and information contained herein are proprietary to, and
- * comprise valuable trade secrets of, Rogue Wave Software, Inc., which
- * intends to preserve as trade secrets such software and information.
- * This software is furnished pursuant to a written license agreement and
- * may be used, copied, transmitted, and stored only in accordance with
- * the terms of such license and with the inclusion of the above copyright
- * notice. This software and information or any other copies thereof may
- * not be provided or otherwise made available to any other person.
- *
- * Notwithstanding any other lease or license that may pertain to, or
- * accompany the delivery of, this computer software and information, the
- * rights of the Government regarding its use, reproduction and disclosure
- * are as set forth in Section 52.227-19 of the FARS Computer
- * Software-Restricted Rights clause.
- *
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
- * Technical Data and Computer Software clause at DFARS 252.227-7013.
- * Contractor/Manufacturer is Rogue Wave Software, Inc.,
- * P.O. Box 2328, Corvallis, Oregon 97339.
- *
- * This computer software and information is distributed with "restricted
- * rights." Use, duplication or disclosure is subject to restrictions as
- * set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
- * Computer Software-Restricted Rights (April 1985)." If the Clause at
- * 18-52.227-74 "Rights in Data General" is specified in the contract,
- * then the "Alternate III" clause applies.
- *
- **************************************************************************/
-
- #include <locale>
- #include <string>
- #include <deque>
- #include <stdexcept>
- #include <iostream>
- #include <sstream>
-
- #include <locale.h>
-
- #ifndef _RWSTD_NO_NAMESPACE
- using namespace std;
- #endif
-
- //Stock exchange displays stock quote at various
- //exchanges distributed globally. Stock prices varies
- //at random(so much for real life!).
-
- //Objective of the example is to show money,
- //number,date and time formated using facets
-
- static size_t rand_ = 0; //to manipulate radomness of stocks
- static struct tm* tmb = 0; //to use by 'localTime()'
-
- struct Company
- {
- public:
- //
- Company(const string&s, double p):companyName(s), offerPrice(p){}
-
- //In actuality a company should not manipulate stocks.
- //For simplicity let the company play with its own stock.
-
- void updateStock()
- {
- double change =offerPrice+randomChange(offerPrice);
- if(randomChange(marketOutlook())%2)
- stockPrice+=change;
- else
- stockPrice-=change;
- if(stockPrice<0)stockPrice=-(stockPrice);
- }
- unsigned long randomChange (unsigned long i)
- {
- if(i)return rand() % i;
- else return rand() % 2;
- }
- string companyName;
- double offerPrice; //initial offer price
- double stockPrice; //current market price
- private:
- string companyNews;//Make use of messaging (if at all it works !)
- size_t marketOutlook(){ return rand_++;}
- };
-
- class StockXchange: public locale::facet
- {
- public:
- //
- typedef basic_ostream<char,char_traits<char> > outStream;
- typedef ostreambuf_iterator<char, char_traits<char> > iter_type;
- typedef deque<Company*,allocator<Company*> > database;
-
- StockXchange(size_t refs=0):locale::facet(refs){}
- StockXchange(const StockXchange& se)
- {companyDatabase = se.companyDatabase;}
- virtual ~StockXchange(){}
-
- static locale::id id;
- virtual bool put(ostream& os) const;
- virtual void add(const string& name, double initPrice);
- virtual void localTime(ostream&) const;
-
- protected:
- database companyDatabase;
- friend StockXchange::outStream& operator<<
- (StockXchange::outStream&, const StockXchange&);
-
- private:
- #ifdef _RWSTD_NO_MEMBER_TEMPLATES
- locale::id &__get_id (void) const { return id; }
- #endif
- };
-
- class TokyoStockXchange : public StockXchange
- {
- public:
- //
- TokyoStockXchange(size_t refs=0)
- :StockXchange(refs){}
-
- virtual void localTime(ostream& os) const
- {
- time_t tm = time(NULL);
- tmb = gmtime(&tm);
- StockXchange::localTime(os);
- }
-
- virtual bool put(ostream& os) const
- {
- os<<'\n';
- os<<"######## TOKYO STOCK EXCHANGE #########"<<endl;
- if(StockXchange::put(os)) return 1;
- else return 0;
- }
- };
-
- class LondonStockXchange : public StockXchange
- {
- public:
- //
-
- LondonStockXchange(size_t refs=0)
- :StockXchange(refs){}
-
- virtual void localTime(ostream& os) const
- {
- time_t tm = time(NULL);
- tmb = gmtime(&tm);
- StockXchange::localTime(os);
- }
-
- virtual bool put(ostream& os) const
- {
- os<<'\n';
- os<<"######## LONDON STOCK EXCHANGE #########"<<endl;
- if(StockXchange::put(os)) return 1;
- else return 0;
- }
- };
-
- class FrankFurtStockXchange : public StockXchange
- {
- public:
- //
- FrankFurtStockXchange(size_t refs=0)
- :StockXchange(refs){}
-
- virtual void localTime(ostream& os) const
- {
- time_t tm = time(NULL);
- tmb = gmtime(&tm);
- StockXchange::localTime(os);
- }
-
- virtual bool put(ostream& os) const
- {
- os<<'\n';
- os<<"######## FRANKFURTER WERTPAPIERB\366RSE #########"<<endl;
- if(StockXchange::put(os)) return 1;
- else return 0;
- }
- };
-
- class NewYorkStockXchange : public StockXchange
- {
- public:
- //
- NewYorkStockXchange(size_t refs=0)
- :StockXchange(refs){}
-
- virtual void localTime(ostream& os) const
- {
- time_t tm = time(NULL);
- tmb = localtime(&tm);
- StockXchange::localTime(os);
- }
-
- virtual bool put(ostream& os) const
- {
- os<<'\n';
- os<<"######## NEW YORK STOCK EXCHANGE ########"<<endl;
- if(StockXchange::put(os)) return 1;
- else return 0;
- }
- };
-
- class ParisStockXchange : public StockXchange
- {
- public:
- //
- ParisStockXchange(size_t refs=0)
- :StockXchange(refs){}
-
- virtual void localTime(ostream& os) const
- {
- time_t tm = time(NULL);
- tmb = gmtime(&tm);
- StockXchange::localTime(os);
- }
-
- virtual bool put(ostream& os) const
- {
- os<<'\n';
- os<<"######## BOURSE DE PARIS #########"<<endl;
- if(StockXchange::put(os)) return 1;
- else return 0;
- }
- };
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