diff --git a/include/boost/unordered/detail/implementation.hpp b/include/boost/unordered/detail/implementation.hpp
index 4849bdfa..8b3b7a5a 100644
--- a/include/boost/unordered/detail/implementation.hpp
+++ b/include/boost/unordered/detail/implementation.hpp
@@ -1516,7 +1516,7 @@ construct_from_args(Alloc& alloc, std::pair<A, B>* address, BOOST_FWD_REF(A0),
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(address->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
 }
@@ -1551,7 +1551,7 @@ inline typename enable_if<use_piecewise<A0>, void>::type construct_from_args(
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(address->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
 }
@@ -1630,7 +1630,7 @@ inline void construct_from_args(Alloc& alloc, std::pair<A, B>* address,
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(address->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
 }
@@ -1841,7 +1841,7 @@ construct_node_pair(Alloc& alloc, BOOST_FWD_REF(Key) k)
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(a.node_->value_ptr()->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
     return a.release();
@@ -1865,7 +1865,7 @@ construct_node_pair(Alloc& alloc, BOOST_FWD_REF(Key) k, BOOST_FWD_REF(Mapped) m)
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(a.node_->value_ptr()->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
     return a.release();
@@ -1890,7 +1890,7 @@ construct_node_pair_from_args(
     {
         boost::unordered::detail::func::destroy(
             boost::addressof(a.node_->value_ptr()->first));
-        BOOST_RETHROW;
+        BOOST_RETHROW
     }
     BOOST_CATCH_END
     return a.release();
@@ -4274,7 +4274,10 @@ inline void table<Types>::rehash_impl(std::size_t num_buckets)
             }
         }
     }
-    BOOST_CATCH(...) { delete_nodes(prev, node_pointer()); }
+    BOOST_CATCH(...) {
+        delete_nodes(prev, node_pointer());
+        BOOST_RETHROW
+    }
     BOOST_CATCH_END
 }
 
diff --git a/test/exception/assign_exception_tests.cpp b/test/exception/assign_exception_tests.cpp
index 3295a4e8..2b39bf74 100644
--- a/test/exception/assign_exception_tests.cpp
+++ b/test/exception/assign_exception_tests.cpp
@@ -7,6 +7,7 @@
 
 #include "../helpers/invariants.hpp"
 #include "../helpers/random_values.hpp"
+#include "../helpers/tracker.hpp"
 
 #if defined(BOOST_MSVC)
 #pragma warning(disable : 4512) // assignment operator could not be generated
@@ -21,7 +22,13 @@ template <class T> struct self_assign_base : public test::exception_base
 
     typedef T data_type;
     T init() const { return T(values.begin(), values.end()); }
-    void run(T& x) const { x = x; }
+
+    void run(T& x) const {
+        x = x;
+        test::check_container(x, values);
+        test::check_equivalent_keys(x);
+    }
+
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x) const
     {
         test::check_equivalent_keys(x);
@@ -57,7 +64,13 @@ template <class T> struct assign_base : public test::exception_base
 
     typedef T data_type;
     T init() const { return T(x); }
-    void run(T& x1) const { x1 = y; }
+
+    void run(T& x1) const {
+        x1 = y;
+        test::check_container(x1, y_values);
+        test::check_equivalent_keys(x1);
+    }
+
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x1) const
     {
         test::check_equivalent_keys(x1);
diff --git a/test/exception/constructor_exception_tests.cpp b/test/exception/constructor_exception_tests.cpp
index db5023f7..e4a12420 100644
--- a/test/exception/constructor_exception_tests.cpp
+++ b/test/exception/constructor_exception_tests.cpp
@@ -7,6 +7,8 @@
 
 #include "../helpers/input_iterator.hpp"
 #include "../helpers/random_values.hpp"
+#include "../helpers/invariants.hpp"
+#include "../helpers/tracker.hpp"
 
 template <typename T> inline void avoid_unused_warning(T const&) {}
 
@@ -25,7 +27,8 @@ template <class T> struct construct_test1 : public objects, test::exception_base
     void run() const
     {
         T x;
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -34,7 +37,8 @@ template <class T> struct construct_test2 : public objects, test::exception_base
     void run() const
     {
         T x(300);
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -43,7 +47,8 @@ template <class T> struct construct_test3 : public objects, test::exception_base
     void run() const
     {
         T x(0, hash);
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -52,7 +57,8 @@ template <class T> struct construct_test4 : public objects, test::exception_base
     void run() const
     {
         T x(0, hash, equal_to);
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -61,7 +67,8 @@ template <class T> struct construct_test5 : public objects, test::exception_base
     void run() const
     {
         T x(50, hash, equal_to, allocator);
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -70,7 +77,8 @@ template <class T> struct construct_test6 : public objects, test::exception_base
     void run() const
     {
         T x(allocator);
-        avoid_unused_warning(x);
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -87,7 +95,8 @@ template <class T> struct range_construct_test1 : public range<T>, objects
     void run() const
     {
         T x(this->values.begin(), this->values.end());
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -96,7 +105,8 @@ template <class T> struct range_construct_test2 : public range<T>, objects
     void run() const
     {
         T x(this->values.begin(), this->values.end(), 0);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -105,7 +115,8 @@ template <class T> struct range_construct_test3 : public range<T>, objects
     void run() const
     {
         T x(this->values.begin(), this->values.end(), 0, hash);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -114,7 +125,8 @@ template <class T> struct range_construct_test4 : public range<T>, objects
     void run() const
     {
         T x(this->values.begin(), this->values.end(), 100, hash, equal_to);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -128,7 +140,8 @@ template <class T> struct range_construct_test5 : public range<T>, objects
     {
         T x(this->values.begin(), this->values.end(), 0, hash, equal_to,
             allocator);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -143,7 +156,8 @@ template <class T> struct input_range_construct_test : public range<T>, objects
             end = this->values.end();
         T x(test::input_iterator(begin), test::input_iterator(end), 0, hash,
             equal_to, allocator);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -156,7 +170,8 @@ template <class T> struct copy_range_construct_test : public range<T>, objects
         T x(test::copy_iterator(this->values.begin()),
             test::copy_iterator(this->values.end()), 0, hash, equal_to,
             allocator);
-        avoid_unused_warning(x);
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
diff --git a/test/exception/copy_exception_tests.cpp b/test/exception/copy_exception_tests.cpp
index 9bb87eca..2faa7e84 100644
--- a/test/exception/copy_exception_tests.cpp
+++ b/test/exception/copy_exception_tests.cpp
@@ -6,6 +6,8 @@
 #include "./containers.hpp"
 
 #include "../helpers/random_values.hpp"
+#include "../helpers/invariants.hpp"
+#include "../helpers/tracker.hpp"
 
 template <typename T> inline void avoid_unused_warning(T const&) {}
 
@@ -18,7 +20,8 @@ template <class T> struct copy_test1 : public test::exception_base
     void run() const
     {
         T y(x);
-        avoid_unused_warning(y);
+        BOOST_TEST(y.empty());
+        test::check_equivalent_keys(y);
     }
 };
 
@@ -32,7 +35,8 @@ template <class T> struct copy_test2 : public test::exception_base
     void run() const
     {
         T y(x);
-        avoid_unused_warning(y);
+        test::check_container(y, this->values);
+        test::check_equivalent_keys(y);
     }
 };
 
@@ -46,7 +50,8 @@ template <class T> struct copy_test3 : public test::exception_base
     void run() const
     {
         T y(x);
-        avoid_unused_warning(y);
+        test::check_container(y, this->values);
+        test::check_equivalent_keys(y);
     }
 };
 
@@ -61,7 +66,8 @@ template <class T> struct copy_with_allocator_test : public test::exception_base
     void run() const
     {
         T y(x, allocator);
-        avoid_unused_warning(y);
+        test::check_container(y, this->values);
+        test::check_equivalent_keys(y);
     }
 };
 
diff --git a/test/exception/erase_exception_tests.cpp b/test/exception/erase_exception_tests.cpp
index a939ded3..719ceb87 100644
--- a/test/exception/erase_exception_tests.cpp
+++ b/test/exception/erase_exception_tests.cpp
@@ -43,6 +43,9 @@ template <class T> struct erase_by_key_test1 : public erase_test_base<T>
              it != end; ++it) {
             x.erase(test::get_key<T>(*it));
         }
+
+        BOOST_TEST(x.empty());
+        test::check_equivalent_keys(x);        
     }
 };
 
diff --git a/test/exception/insert_exception_tests.cpp b/test/exception/insert_exception_tests.cpp
index f8d635de..b43ece5c 100644
--- a/test/exception/insert_exception_tests.cpp
+++ b/test/exception/insert_exception_tests.cpp
@@ -2,13 +2,14 @@
 // Copyright 2006-2009 Daniel James.
 // 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)
-
 #include "./containers.hpp"
+#include <iostream>
 
 #include "../helpers/helpers.hpp"
 #include "../helpers/invariants.hpp"
 #include "../helpers/random_values.hpp"
 #include "../helpers/strong.hpp"
+#include "../helpers/tracker.hpp"
 #include <cmath>
 #include <string>
 
@@ -54,6 +55,10 @@ template <class T> struct emplace_test1 : public insert_test_base<T>
             strong.store(x, test::detail::tracker.count_allocations);
             x.emplace(*it);
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -72,6 +77,10 @@ template <class T> struct insert_test1 : public insert_test_base<T>
             strong.store(x, test::detail::tracker.count_allocations);
             x.insert(*it);
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -88,12 +97,23 @@ template <class T> struct insert_test2 : public insert_test_base<T>
             strong.store(x, test::detail::tracker.count_allocations);
             x.insert(x.begin(), *it);
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
 template <class T> struct insert_test3 : public insert_test_base<T>
 {
-    void run(T& x) const { x.insert(this->values.begin(), this->values.end()); }
+    void run(T& x) const
+    {
+        x.insert(this->values.begin(), this->values.end());
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x) const
     {
@@ -114,6 +134,10 @@ template <class T> struct insert_test4 : public insert_test_base<T>
             strong.store(x, test::detail::tracker.count_allocations);
             x.insert(it, test::next(it));
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -147,17 +171,30 @@ template <class T> struct insert_test_rehash1 : public insert_test_base<T>
         int count = 0;
         BOOST_DEDUCED_TYPENAME T::const_iterator pos = x.cbegin();
 
+        test::list<typename T::value_type> v;
+        {
+            DISABLE_EXCEPTIONS;
+            v.insert(x.begin(), x.end());
+        }
+
         for (BOOST_DEDUCED_TYPENAME test::random_values<T>::const_iterator
                  it = test::next(this->values.begin(), x.size()),
                  end = this->values.end();
              it != end && count < 10; ++it, ++count) {
             strong.store(x, test::detail::tracker.count_allocations);
             pos = x.insert(pos, *it);
+
+            DISABLE_EXCEPTIONS;
+            v.push_back(*it);
         }
 
         // This isn't actually a failure, but it means the test isn't doing its
         // job.
         BOOST_TEST(x.bucket_count() != bucket_count);
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, v);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -170,17 +207,30 @@ template <class T> struct insert_test_rehash2 : public insert_test_rehash1<T>
         BOOST_DEDUCED_TYPENAME T::size_type bucket_count = x.bucket_count();
         int count = 0;
 
+        test::list<typename T::value_type> v;
+        {
+            DISABLE_EXCEPTIONS;
+            v.insert(x.begin(), x.end());
+        }
+
         for (BOOST_DEDUCED_TYPENAME test::random_values<T>::const_iterator
                  it = test::next(this->values.begin(), x.size()),
                  end = this->values.end();
              it != end && count < 10; ++it, ++count) {
             strong.store(x, test::detail::tracker.count_allocations);
             x.insert(*it);
+
+            DISABLE_EXCEPTIONS;
+            v.push_back(*it);
         }
 
         // This isn't actually a failure, but it means the test isn't doing its
         // job.
         BOOST_TEST(x.bucket_count() != bucket_count);
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, v);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -218,6 +268,14 @@ template <class T> struct insert_test_rehash3 : public insert_test_base<T>
     void run(T& x) const
     {
         BOOST_DEDUCED_TYPENAME T::size_type bucket_count = x.bucket_count();
+        test::list<typename T::value_type> v;
+
+        {
+            DISABLE_EXCEPTIONS;
+            v.insert(x.begin(), x.end());
+            v.insert(test::next(this->values.begin(), x.size()),
+                test::next(this->values.begin(), x.size() + 20));
+        }
 
         x.insert(test::next(this->values.begin(), x.size()),
             test::next(this->values.begin(), x.size() + 20));
@@ -225,6 +283,10 @@ template <class T> struct insert_test_rehash3 : public insert_test_base<T>
         // This isn't actually a failure, but it means the test isn't doing its
         // job.
         BOOST_TEST(x.bucket_count() != bucket_count);
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, v);
+        test::check_equivalent_keys(x);
     }
 
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x) const
@@ -263,6 +325,10 @@ template <class T> struct pair_emplace_test1 : public insert_test_base<T>
             x.emplace(boost::unordered::piecewise_construct,
                 boost::make_tuple(it->first), boost::make_tuple(it->second));
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
@@ -281,6 +347,10 @@ template <class T> struct pair_emplace_test2 : public insert_test_base<T>
                 boost::make_tuple(it->first),
                 boost::make_tuple(it->second.tag1_, it->second.tag2_));
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
     }
 };
 
diff --git a/test/exception/move_assign_exception_tests.cpp b/test/exception/move_assign_exception_tests.cpp
index 9a8d122b..048ab102 100644
--- a/test/exception/move_assign_exception_tests.cpp
+++ b/test/exception/move_assign_exception_tests.cpp
@@ -7,6 +7,7 @@
 
 #include "../helpers/invariants.hpp"
 #include "../helpers/random_values.hpp"
+#include "../helpers/tracker.hpp"
 #include <iostream>
 
 #if defined(BOOST_MSVC)
@@ -42,7 +43,11 @@ template <class T> struct move_assign_base : public test::exception_base
         T y1 = y;
         disable_exceptions.release();
         x1 = boost::move(y1);
+
+        test::check_container(x1, y_values);
+        test::check_equivalent_keys(x1);
     }
+
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x1) const
     {
         test::check_equivalent_keys(x1);
diff --git a/test/exception/rehash_exception_tests.cpp b/test/exception/rehash_exception_tests.cpp
index a65ebae9..ae31f397 100644
--- a/test/exception/rehash_exception_tests.cpp
+++ b/test/exception/rehash_exception_tests.cpp
@@ -8,6 +8,7 @@
 #include "../helpers/invariants.hpp"
 #include "../helpers/random_values.hpp"
 #include "../helpers/strong.hpp"
+#include "../helpers/tracker.hpp"
 #include <string>
 
 #include <iostream>
@@ -49,34 +50,76 @@ template <class T> struct rehash_test_base : public test::exception_base
 template <class T> struct rehash_test0 : rehash_test_base<T>
 {
     rehash_test0() : rehash_test_base<T>(0) {}
-    void run(T& x) const { x.rehash(0); }
+    void run(T& x) const
+    {
+        x.rehash(0);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 };
 
 template <class T> struct rehash_test1 : rehash_test_base<T>
 {
     rehash_test1() : rehash_test_base<T>(0) {}
-    void run(T& x) const { x.rehash(200); }
+    void run(T& x) const
+    {
+        x.rehash(200);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 };
 
 template <class T> struct rehash_test2 : rehash_test_base<T>
 {
     rehash_test2() : rehash_test_base<T>(0, 200) {}
-    void run(T& x) const { x.rehash(0); }
+    void run(T& x) const
+    {
+        x.rehash(0);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 };
 
 template <class T> struct rehash_test3 : rehash_test_base<T>
 {
     rehash_test3() : rehash_test_base<T>(10, 0) {}
-    void run(T& x) const { x.rehash(200); }
+    void run(T& x) const
+    {
+        x.rehash(200);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 };
 
 template <class T> struct rehash_test4 : rehash_test_base<T>
 {
     rehash_test4() : rehash_test_base<T>(10, 200) {}
-    void run(T& x) const { x.rehash(0); }
+    void run(T& x) const
+    {
+        x.rehash(0);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
 };
 
-EXCEPTION_TESTS(
-    (rehash_test0)(rehash_test1)(rehash_test2)(rehash_test3)(rehash_test4),
+template <class T> struct rehash_test5 : rehash_test_base<T>
+{
+    rehash_test5() : rehash_test_base<T>(200, 10) {}
+    void run(T& x) const
+    {
+        x.rehash(0);
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
+};
+
+EXCEPTION_TESTS((rehash_test0)(rehash_test1)(rehash_test2)(rehash_test3)(
+                    rehash_test4)(rehash_test5),
     CONTAINER_SEQ)
 RUN_TESTS()
diff --git a/test/exception/swap_exception_tests.cpp b/test/exception/swap_exception_tests.cpp
index 12ba6403..13ee18b3 100644
--- a/test/exception/swap_exception_tests.cpp
+++ b/test/exception/swap_exception_tests.cpp
@@ -7,6 +7,7 @@
 
 #include "../helpers/invariants.hpp"
 #include "../helpers/random_values.hpp"
+#include "../helpers/tracker.hpp"
 
 #if defined(BOOST_MSVC)
 #pragma warning(disable : 4512) // assignment operator could not be generated
@@ -21,7 +22,15 @@ template <class T> struct self_swap_base : public test::exception_base
 
     typedef T data_type;
     T init() const { return T(values.begin(), values.end()); }
-    void run(T& x) const { x.swap(x); }
+
+    void run(T& x) const {
+        x.swap(x);
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(x, this->values);
+        test::check_equivalent_keys(x);
+    }
+
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x) const
     {
         std::string scope(test::scope);
@@ -82,7 +91,14 @@ template <class T> struct swap_base : public test::exception_base
             d.x.swap(d.y);
         } catch (std::runtime_error) {
         }
+
+        DISABLE_EXCEPTIONS;
+        test::check_container(d.x, this->y_values);
+        test::check_equivalent_keys(d.x);
+        test::check_container(d.y, this->x_values);
+        test::check_equivalent_keys(d.y);
     }
+
     void check BOOST_PREVENT_MACRO_SUBSTITUTION(data_type const& d) const
     {
         std::string scope(test::scope);
diff --git a/test/objects/exception.hpp b/test/objects/exception.hpp
index e76ac477..017c88da 100644
--- a/test/objects/exception.hpp
+++ b/test/objects/exception.hpp
@@ -11,6 +11,7 @@
 #include "../helpers/count.hpp"
 #include "../helpers/fwd.hpp"
 #include "../helpers/memory.hpp"
+#include "../objects/fwd.hpp"
 #include <boost/limits.hpp>
 #include <cstddef>
 #include <iostream>
@@ -311,6 +312,55 @@ class equal_to
     }
 };
 
+class less
+{
+    int tag_;
+
+  public:
+    less(int t = 0) : tag_(t) {}
+
+    less(less const& x) : tag_(x.tag_) {}
+
+    bool operator()(object const& x1, object const& x2) const
+    {
+        return less_impl(x1, x2);
+    }
+
+    bool operator()(std::pair<object, object> const& x1,
+        std::pair<object, object> const& x2) const
+    {
+        if (less_impl(x1.first, x2.first)) {
+            return true;
+        }
+        if (!less_impl(x1.first, x2.first)) {
+            return false;
+        }
+        return less_impl(x1.second, x2.second);
+    }
+
+    bool less_impl(object const& x1, object const& x2) const
+    {
+        switch (tag_) {
+        case 1:
+            return x1.tag1_ < x2.tag1_;
+        case 2:
+            return x1.tag2_ < x2.tag2_;
+        default:
+            return x1 < x2;
+        }
+    }
+
+    friend bool operator==(less const& x1, less const& x2)
+    {
+        return x1.tag_ == x2.tag_;
+    }
+
+    friend bool operator!=(less const& x1, less const& x2)
+    {
+        return x1.tag_ != x2.tag_;
+    }
+};
+
 template <class T> class allocator
 {
   public:
@@ -672,6 +722,14 @@ inline bool operator!=(allocator2<T> const& x, allocator2<T> const& y)
 }
 }
 
+namespace test {
+template <typename X> struct equals_to_compare;
+template <> struct equals_to_compare<test::exception::equal_to>
+{
+    typedef test::exception::less type;
+};
+}
+
 // Workaround for ADL deficient compilers
 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
 namespace test {