First inclusion

[SVN r37593]

example/doc_set.cpp

@@ -0,0 +1,95 @@
+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztañaga  2006-2007
+//
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/intrusive for documentation.
+//
+/////////////////////////////////////////////////////////////////////////////
+//[doc_set_code
+#include <boost/intrusive/set.hpp>
+#include <vector>
+#include <algorithm>
+
+using namespace boost::intrusive;
+
+                  //This is a base hook
+class MyClass  :  public set_base_hook<>
+{
+   int int_;
+
+   public:
+   //This is a member hook
+   set_member_hook<> member_hook_;
+
+   MyClass(int i)
+      :  int_(i)
+      {}
+   int get() const
+      {  return int_;  }
+   friend bool operator< (const MyClass &a, const MyClass &b)
+      {  return a.get() < b.get();  }
+   friend bool operator> (const MyClass &a, const MyClass &b)
+      {  return a.get() > b.get();  }
+};
+
+//Define an set that will store MyClass
+//in reverse order using the public base hook
+typedef set< set_base_hook<>::value_traits<MyClass>
+           , std::greater<MyClass> >     BaseSet;
+
+//Define an multiset that will store MyClass
+//using the public member hook
+typedef multiset< set_member_hook<>::
+                     value_traits<MyClass, &MyClass::member_hook_>
+                , std::less<MyClass> >   MemberIMultiset;
+
+int main()
+{
+   typedef std::vector<MyClass> Vect;
+   typedef Vect::iterator VectIt;
+   typedef Vect::reverse_iterator VectRit;
+
+   //Create several MyClass objects, each one
+   //with a different internal number
+   Vect myclassvector;
+   for(int i = 0; i < 100; ++i)
+      myclassvector.push_back(MyClass(i));
+
+   BaseSet baseset;
+   MemberIMultiset membermultiset;
+
+   //Now insert them in the reverse order
+   //in the base hook intrusive set
+   for(VectIt it(myclassvector.begin()), itend(myclassvector.end())
+      ; it != itend; ++it)
+      baseset.insert(*it);
+
+   //Now insert them in the same order as in vector in the
+   //member hook intrusive set
+   for(VectIt it(myclassvector.begin()), itend(myclassvector.end())
+      ; it != itend; ++it)
+      membermultiset.insert(*it);
+
+   //Now test sets
+   {
+      BaseSet::reverse_iterator rbit(baseset.rbegin()), rbitend(baseset.rend());
+      MemberIMultiset::iterator mit(membermultiset.begin()), mitend(membermultiset.end());
+      VectIt it(myclassvector.begin()), itend(myclassvector.end());
+
+      //Test the objects inserted in the base hook set
+      for(; it != itend; ++it, ++rbit){
+         if(&*rbit != &*it)   return 1;
+      }
+
+      //Test the objects inserted in the member hook set
+      for(it = myclassvector.begin(); it != itend; ++it, ++mit){
+         if(&*mit != &*it) return 1;
+      }
+   }
+   return 0;
+}
+//]