src/mem/gems_common/RefCnt_tester.cc

   1 /*
   2  * Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*
  30  * Code used to test the RefCnt class
  31  */
  32
  33 #include "mem/gems_common/RefCnt.hh"
  34 #include "mem/gems_common/RefCountable.hh"
  35
  36 class Foo : public RefCountable {
  37 public:
  38   int m_data;
  39   Foo* clone() const;
  40 private:
  41 };
  42
  43 Foo* Foo::clone() const
  44 {
  45   Foo* temp_ptr;
  46   temp_ptr = new Foo;
  47   *temp_ptr = *this;
  48   cout << "Cloned!" << endl;
  49   return temp_ptr;
  50 }
  51
  52 void bar(RefCnt<Foo> f)
  53 {
  54   cout << f.ref()->m_data << endl;
  55 }
  56
  57 Foo f2;
  58
  59 int main()
  60 {
  61   Foo f;
  62   f.m_data = 2;
  63
  64   {
  65     RefCnt<Foo> a(f);
  66
  67     f.m_data = 3;
  68     cout << a.ref()->m_data << endl;
  69     cout << f.m_data << endl;
  70     f2 = f;
  71   }
  72
  73   bar(f2);
  74
  75   return 0;
  76 }
  77
  78