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_treap_set.cpp | 106 +++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 src/boost/libs/intrusive/example/doc_treap_set.cpp

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

diff --git a/src/boost/libs/intrusive/example/doc_treap_set.cpp b/src/boost/libs/intrusive/example/doc_treap_set.cpp
new file mode 100644
index 00000000..f8abbe58
--- /dev/null
+++ b/src/boost/libs/intrusive/example/doc_treap_set.cpp
@@ -0,0 +1,106 @@
+/////////////////////////////////////////////////////////////////////////////
+//
+// (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_treap_set_code
+#include <boost/intrusive/treap_set.hpp>
+#include <vector>
+#include <functional>
+#include <cassert>
+
+using namespace boost::intrusive;
+
+class MyClass : public bs_set_base_hook<> //This is a base hook
+{
+   int int_;
+   unsigned int prio_;
+
+   public:
+   //This is a member hook
+   bs_set_member_hook<> member_hook_;
+
+   MyClass(int i, unsigned int prio)  :  int_(i), prio_(prio)
+      {}
+
+   unsigned int get_priority() const
+   {  return this->prio_;   }
+
+   //Less and greater operators
+   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_;  }
+   //Default priority compare
+   friend bool priority_order (const MyClass &a, const MyClass &b)
+      {  return a.prio_ < b.prio_;  }  //Lower value means higher priority
+   //Inverse priority compare
+   friend bool priority_inverse_order (const MyClass &a, const MyClass &b)
+      {  return a.prio_ > b.prio_;  }  //Higher value means higher priority
+};
+
+struct inverse_priority
+{
+   bool operator()(const MyClass &a, const MyClass &b) const
+   {  return priority_inverse_order(a, b); }
+};
+
+
+//Define an treap_set using the base hook that will store values in reverse order
+typedef treap_set< MyClass, compare<std::greater<MyClass> > >     BaseSet;
+
+//Define an multiset using the member hook that will store
+typedef member_hook<MyClass, bs_set_member_hook<>, &MyClass::member_hook_> MemberOption;
+typedef treap_multiset
+   < MyClass, MemberOption, priority<inverse_priority> > 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, (i % 10)));
+
+   BaseSet baseset;
+   MemberMultiset membermultiset;
+
+   //Now insert them in the sets
+   for(VectIt it(values.begin()), itend(values.end()); it != itend; ++it){
+      baseset.insert(*it);
+      membermultiset.insert(*it);
+   }
+
+   //Now test treap_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 treap_set
+      for(; it != itend; ++it, ++rbit)
+         if(&*rbit != &*it)   return 1;
+
+      //Test the objects inserted in the member hook treap_set
+      for(it = values.begin(); it != itend; ++it, ++mit)
+         if(&*mit != &*it) return 1;
+
+      //Test priority order
+      for(int i = 0; i < 100; ++i){
+         if(baseset.top()->get_priority() != static_cast<unsigned int>(i/10))
+            return 1;
+         if(membermultiset.top()->get_priority() != 9u - static_cast<unsigned int>(i/10))
+            return 1;
+         baseset.erase(baseset.top());
+         membermultiset.erase(membermultiset.top());
+      }
+   }
+   return 0;
+}
+//]
-- 
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