ceph/src/boost/libs/utility/shared_iterator_test.cpp

   1 // Copyright 2003 The Trustees of Indiana University.
   2
   3 // Use, modification and distribution is subject to the Boost Software
   4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6
   7 //  Shared container iterator adaptor
   8 //  Author: Ronald Garcia
   9 //  See http://boost.org/libs/utility/shared_container_iterator.html
  10 //  for documentation.
  11
  12 //
  13 // shared_iterator_test.cpp - Regression tests for shared_container_iterator.
  14 //
  15
  16
  17 #include "boost/shared_container_iterator.hpp"
  18 #include "boost/shared_ptr.hpp"
  19 #include <vector>
  20 #include <cassert>
  21
  22 struct resource {
  23   static int count;
  24   resource() { ++count; }
  25   resource(resource const&) { ++count; }
  26   ~resource() { --count; }
  27 };
  28 int resource::count = 0;
  29
  30 typedef std::vector<resource> resources_t;
  31
  32 typedef boost::shared_container_iterator< resources_t > iterator;
  33
  34
  35 void set_range(iterator& i, iterator& end)  {
  36
  37   boost::shared_ptr< resources_t > objs(new resources_t());
  38
  39   for (int j = 0; j != 6; ++j)
  40     objs->push_back(resource());
  41
  42   i = iterator(objs->begin(),objs);
  43   end = iterator(objs->end(),objs);
  44   assert(resource::count == 6);
  45 }
  46
  47
  48 int main() {
  49
  50   assert(resource::count == 0);
  51
  52   {
  53     iterator i;
  54     {
  55       iterator end;
  56       set_range(i,end);
  57       assert(resource::count == 6);
  58     }
  59     assert(resource::count == 6);
  60   }
  61   assert(resource::count == 0);
  62
  63   return 0;
  64 }