1 files changed, 74 insertions, 0 deletions
diff --git a/src/boost/libs/serialization/test/test_singleton.cpp b/src/boost/libs/serialization/test/test_singleton.cpp
new file mode 100644
index 000000000..5d3b88df7
--- /dev/null
+++ b/src/boost/libs/serialization/test/test_singleton.cpp
@@ -0,0 +1,74 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// test_singleton.cpp
+
+// (C) Copyright 2018 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to 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)
+
+// should pass compilation and execution
+
+#include <iostream>
+#include <boost/serialization/singleton.hpp>
+
+#include "test_tools.hpp"
+
+static int i = 0;
+
+struct A {
+    int m_id;
+    A() : m_id(++i) {}
+    ~A(){
+        // verify that objects are destroyed in sequence reverse of construction
+        if(i-- != m_id) std::terminate();
+    }
+};
+
+struct B {
+    int m_id;
+    B() : m_id(++i) {}
+    ~B(){
+        // verify that objects are destroyed in sequence reverse of construction
+        if(i-- != m_id) std::terminate();
+    }
+};
+
+struct C {
+    int m_id;
+    C() : m_id(++i) {}
+    ~C(){
+        // verify that objects are destroyed in sequence reverse of construction
+        if(i-- != m_id) std::terminate();
+    }
+};
+
+struct D {
+    int m_id;
+    D(){
+        // verify that only one object is indeed created
+        const C & c = boost::serialization::singleton<C>::get_const_instance();
+        const C & c1 = boost::serialization::singleton<C>::get_const_instance();
+        BOOST_CHECK_EQUAL(&c, &c1);
+
+        // verify that objects are created in sequence of definition
+        BOOST_CHECK_EQUAL(c.m_id, 1);
+        const B & b = boost::serialization::singleton<B>::get_const_instance();
+        BOOST_CHECK_EQUAL(b.m_id, 2);
+        const A & a = boost::serialization::singleton<A>::get_const_instance();
+        BOOST_CHECK_EQUAL(a.m_id, 3);
+        std::cout << a.m_id << b.m_id << c.m_id << '\n';
+
+        m_id = ++i;
+    }
+    ~D(){
+        // verify that objects are destroyed in sequence reverse of construction
+        if(i-- != m_id) std::terminate();
+    }
+};
+
+int test_main(int, char *[]){
+    return 0;
+}
+
+// note: not a singleton
+D d;