examples/manual/istrstream.cpp

/***************************************************************************
 *
 * istrstream.cpp - istrstream example.
 *
 * $Id: //stdlib/dev/examples/stdlib/manual/istrstream.cpp#11 $
 *
 ***************************************************************************
 *
 * Copyright (c) 1994-2005 Quovadx,  Inc., acting through its  Rogue Wave
 * Software division. Licensed 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.
 * 
 **************************************************************************/

#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;
}