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1998-02-09
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#include "stlexam.h"
#pragma hdrstop
/***************************************************************************
*
* stringbuf.cpp - basic_stringbuf example
*
* $Id: stringbuf.cpp,v 1.4 1996/08/28 01:18:27 smithey Exp $
*
***************************************************************************
*
* (c) Copyright 1994, 1995 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.
*
**************************************************************************/
//
// stdlib/examples/manual/stringbuf.cpp
//
#include<iostream>
#include<sstream>
#include<string>
#ifndef _RWSTD_NO_NAMESPACE
using namespace std;
#endif
int main ( )
{
// create a read/write string-stream object on tiny char
// and attach it to an ostringstream object
ostringstream out_1(ios_base::in | ios_base::out);
// tie the istream object to the ostringstream object
istream in_1(out_1.rdbuf());
// output to out_1
out_1 << "Here is the first ouput";
// create a string object on tiny char
string string_ex("l'heure est grave !");
// open a read only string-stream object on tiny char
// and initialize it
istringstream in_2(string_ex);
// output in_1 to the standard output
cout << in_1.rdbuf() << endl;
// reposition in_1 at the beginning
in_1.seekg(0);
// output in_2 to the standard output
cout << in_2.rdbuf() << endl;
// reposition in_2 at the beginning
in_2.seekg(0);
stringbuf::pos_type pos;
// get the current put position
// equivalent to
// out_1.tellp();
pos = out_1.rdbuf()->pubseekoff(0,ios_base::cur,
ios_base::out);
// append the content of stringbuffer
// pointed at by in_2 to the one
// pointed at by out_1
out_1 << ' ' << in_2.rdbuf();
// output in_1 to the standard output
cout << in_1.rdbuf() << endl;
// position the get sequence
// equivalent to
// in_1.seekg(pos);
in_1.rdbuf()->pubseekpos(pos, ios_base::in);
// output "l'heure est grave !"
cout << in_1.rdbuf() << endl << endl;
return 0;
}