From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/boost/libs/intrusive/example/doc_set.cpp | 85 ++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/boost/libs/intrusive/example/doc_set.cpp

(limited to 'src/boost/libs/intrusive/example/doc_set.cpp')

diff --git a/src/boost/libs/intrusive/example/doc_set.cpp b/src/boost/libs/intrusive/example/doc_set.cpp
new file mode 100644
index 00000000..dae81abc
--- /dev/null
+++ b/src/boost/libs/intrusive/example/doc_set.cpp
@@ -0,0 +1,85 @@
+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga  2006-2013
+//
+// 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 <functional>
+#include <cassert>
+
+using namespace boost::intrusive;
+
+                  //This is a base hook optimized for size
+class MyClass : public set_base_hook<optimize_size<true> >
+{
+   int int_;
+
+   public:
+   //This is a member hook
+   set_member_hook<> member_hook_;
+
+   MyClass(int i)
+      :  int_(i)
+      {}
+   friend bool operator< (const MyClass &a, const MyClass &b)
+      {  return a.int_ < b.int_;  }
+   friend bool operator> (const MyClass &a, const MyClass &b)
+      {  return a.int_ > b.int_;  }
+   friend bool operator== (const MyClass &a, const MyClass &b)
+      {  return a.int_ == b.int_;  }
+};
+
+//Define a set using the base hook that will store values in reverse order
+typedef set< MyClass, compare<std::greater<MyClass> > >     BaseSet;
+
+//Define an multiset using the member hook
+typedef member_hook<MyClass, set_member_hook<>, &MyClass::member_hook_> MemberOption;
+typedef multiset< MyClass, MemberOption>   MemberMultiset;
+
+int main()
+{
+   typedef std::vector<MyClass>::iterator VectIt;
+
+   //Create several MyClass objects, each one with a different value
+   std::vector<MyClass> values;
+   for(int i = 0; i < 100; ++i)  values.push_back(MyClass(i));
+
+   BaseSet baseset;
+   MemberMultiset membermultiset;
+
+   //Check that size optimization is activated in the base hook
+   assert(sizeof(set_base_hook<optimize_size<true> >) == 3*sizeof(void*));
+   //Check that size optimization is deactivated in the member hook
+   assert(sizeof(set_member_hook<>) > 3*sizeof(void*));
+
+   //Now insert them in the reverse order in the base hook set
+   for(VectIt it(values.begin()), itend(values.end()); it != itend; ++it){
+      baseset.insert(*it);
+      membermultiset.insert(*it);
+   }
+
+   //Now test sets
+   {
+      BaseSet::reverse_iterator rbit(baseset.rbegin());
+      MemberMultiset::iterator mit(membermultiset.begin());
+      VectIt it(values.begin()), itend(values.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 = values.begin(); it != itend; ++it, ++mit)
+         if(&*mit != &*it) return 1;
+   }
+   return 0;
+}
+//]
-- 
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