Initial commit of local_shared_ptr

2026-04-28 18:13:34 +02:00 · 2017-06-04 21:24:20 +03:00
parent ca9cb71e86
commit aeadd6aeff
4 changed files with 903 additions and 0 deletions
@@ -0,0 +1,275 @@
+//
+// local_sp_test.cpp
+//
+// Copyright 2002, 2003, 2017 Peter Dimov
+//
+// 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 <boost/smart_ptr/local_shared_ptr.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+struct X
+{
+    static long instances;
+
+    X()
+    {
+        ++instances;
+    }
+
+    ~X()
+    {
+        --instances;
+    }
+
+private:
+
+    X( X const & );
+    X & operator=( X const & );
+};
+
+long X::instances = 0;
+
+class incomplete;
+
+static void default_constructor()
+{
+    {
+        boost::local_shared_ptr<int> p;
+
+        BOOST_TEST( p? false: true );
+        BOOST_TEST( !p );
+        BOOST_TEST( p.get() == 0 );
+        BOOST_TEST( p.local_use_count() == 0 );
+    }
+
+    {
+        boost::local_shared_ptr<void> p;
+
+        BOOST_TEST( p? false: true );
+        BOOST_TEST( !p );
+        BOOST_TEST( p.get() == 0 );
+        BOOST_TEST( p.local_use_count() == 0 );
+    }
+
+    {
+        boost::local_shared_ptr<incomplete> p;
+
+        BOOST_TEST( p? false: true );
+        BOOST_TEST( !p );
+        BOOST_TEST( p.get() == 0 );
+        BOOST_TEST( p.local_use_count() == 0 );
+    }
+
+    BOOST_TEST( X::instances == 0 );
+
+    {
+        boost::local_shared_ptr<X> p;
+
+        BOOST_TEST( X::instances == 0 );
+
+        BOOST_TEST( p? false: true );
+        BOOST_TEST( !p );
+        BOOST_TEST( p.get() == 0 );
+        BOOST_TEST( p.local_use_count() == 0 );
+    }
+}
+
+template<class T, class U> static void pc0_test_()
+{
+    boost::local_shared_ptr<T> p( static_cast<U*>( 0 ) );
+
+    BOOST_TEST( p? false: true );
+    BOOST_TEST( !p );
+    BOOST_TEST( p.get() == 0 );
+    BOOST_TEST( p.local_use_count() == 1 );
+}
+
+template<class T> static void pc0_test()
+{
+    pc0_test_<T, T>();
+    pc0_test_<T const, T const>();
+    pc0_test_<T volatile, T volatile>();
+    pc0_test_<T const volatile, T const volatile>();
+
+    pc0_test_<T const, T>();
+    pc0_test_<T volatile, T>();
+    pc0_test_<T const volatile, T>();
+
+    pc0_test_<void, T>();
+    pc0_test_<void const, T>();
+    pc0_test_<void volatile, T>();
+    pc0_test_<void const volatile, T>();
+}
+
+template<class T, class U> static void pc1_test_()
+{
+    boost::local_shared_ptr<T> p( new U() );
+
+    BOOST_TEST( p? true: false );
+    BOOST_TEST( !!p );
+    BOOST_TEST( p.get() != 0 );
+    BOOST_TEST( p.local_use_count() == 1 );
+}
+
+template<class T> static void pc1_test()
+{
+    pc1_test_<T, T>();
+    pc1_test_<T const, T const>();
+    pc1_test_<T volatile, T volatile>();
+    pc1_test_<T const volatile, T const volatile>();
+
+    pc1_test_<T const, T>();
+    pc1_test_<T volatile, T>();
+    pc1_test_<T const volatile, T>();
+
+    pc1_test_<void, T>();
+    pc1_test_<void const, T>();
+    pc1_test_<void volatile, T>();
+    pc1_test_<void const volatile, T>();
+}
+
+static void pointer_constructor()
+{
+    pc0_test<int>();
+    pc0_test<X>();
+
+    pc1_test<int>();
+
+    BOOST_TEST( X::instances == 0 );
+
+    pc1_test<X>();
+
+    BOOST_TEST( X::instances == 0 );
+}
+
+int m = 0;
+
+void deleter2( int * p )
+{
+    BOOST_TEST( p == &m );
+    ++*p;
+}
+
+template<class T> static void deleter2_test_()
+{
+    {
+        m = 0;
+        boost::local_shared_ptr<T> p( &m, deleter2 );
+
+        BOOST_TEST( p? true: false );
+        BOOST_TEST( !!p );
+        BOOST_TEST( p.get() == &m );
+        BOOST_TEST( p.local_use_count() == 1 );
+    }
+
+    BOOST_TEST( m == 1 );
+}
+
+static void deleter_constructor()
+{
+    deleter2_test_<int>();
+    deleter2_test_<int const>();
+    deleter2_test_<int volatile>();
+    deleter2_test_<int const volatile>();
+
+    deleter2_test_<void>();
+    deleter2_test_<void const>();
+    deleter2_test_<void volatile>();
+    deleter2_test_<void const volatile>();
+}
+
+template<class T> static void test_empty( boost::local_shared_ptr<T> const & p )
+{
+    BOOST_TEST( p? false: true );
+    BOOST_TEST( !p );
+    BOOST_TEST( p.get() == 0 );
+    BOOST_TEST( p.local_use_count() == 0 );
+}
+
+template<class T> static void empty_copy_test()
+{
+    boost::local_shared_ptr<T> p1;
+    test_empty( p1 );
+
+    boost::local_shared_ptr<T> p2( p1 );
+    test_empty( p2 );
+
+    boost::local_shared_ptr<T const> p3( p1 );
+    test_empty( p3 );
+
+    boost::local_shared_ptr<void> p4( p1 );
+    test_empty( p4 );
+
+    boost::local_shared_ptr<void const> p5( p3 );
+    test_empty( p5 );
+}
+
+template<class T, class U> static void test_nonempty_copy( boost::local_shared_ptr<U> const & p1 )
+{
+    long k = p1.local_use_count();
+
+    {
+        boost::local_shared_ptr<T> p2( p1 );
+
+        BOOST_TEST( p2.get() == p1.get() );
+        BOOST_TEST( p2.local_use_count() == p1.local_use_count() );
+        BOOST_TEST( p2.local_use_count() == k + 1 );
+    }
+
+    BOOST_TEST( p1.local_use_count() == k );
+}
+
+template<class T> static void null_copy_test()
+{
+    boost::local_shared_ptr<T> p1( static_cast<T*>(0) );
+
+    test_nonempty_copy<T>( p1 );
+    test_nonempty_copy<T const>( p1 );
+    test_nonempty_copy<T volatile>( p1 );
+    test_nonempty_copy<T const volatile>( p1 );
+    test_nonempty_copy<void>( p1 );
+    test_nonempty_copy<void const>( p1 );
+    test_nonempty_copy<void volatile>( p1 );
+    test_nonempty_copy<void const volatile>( p1 );
+}
+
+template<class T> static void new_copy_test()
+{
+    boost::local_shared_ptr<T> p1( new T() );
+
+    test_nonempty_copy<T>( p1 );
+    test_nonempty_copy<T const>( p1 );
+    test_nonempty_copy<T volatile>( p1 );
+    test_nonempty_copy<T const volatile>( p1 );
+    test_nonempty_copy<void>( p1 );
+    test_nonempty_copy<void const>( p1 );
+    test_nonempty_copy<void volatile>( p1 );
+    test_nonempty_copy<void const volatile>( p1 );
+}
+
+static void copy_constructor()
+{
+    empty_copy_test<int>();
+    empty_copy_test<incomplete>();
+    empty_copy_test<X>();
+
+    null_copy_test<int>();
+    null_copy_test<X>();
+
+    new_copy_test<int>();
+    new_copy_test<X>();
+}
+
+int main()
+{
+    default_constructor();
+    pointer_constructor();
+    deleter_constructor();
+    copy_constructor();
+
+    return boost::report_errors();
+}