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* istrstream.cpp - istrstream example.
* $Id$
* 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* implied. See the License for the specific language governing
* permissions and limitations under the License.
* Copyright 1994-2006 Rogue Wave Software.
#include <iostream> // for cout
#include <strstream> // for strstream
#include <examples.h>
int main ()
// create two constant istrstream objects and initialize their
// underlying strstreambufs with string literals; the objects
// do not create copies of the literals but use them directly
// for efficiency
std::istrstream a ("Ce n'est pas l'homme qui prend la mer, ");
std::istrstream b ("c'est la mer qui prend l'homme.");
// create a dynamic strstream object
std::strstream out;
// output the contents of the streams into out
out << a.rdbuf () << b.str () << '\n';
// output the contents of out to standard output
std::cout << out.rdbuf () << '\n';
// output the contents of the stream objects to standard output
std::cout << a.str () << '\n' << b.rdbuf () << '\n';
// the dtors of a and b will not release any storage
// since the objects did not allocate any
// the dtor of out will release allocated storage since
// neither freeze() nor str() was called on the object
return 0;