Integrate and adapt "devector's", from Thaler Benedek's implementation.

2020-08-10 00:16:58 +02:00
parent 844b779a7d
commit ebcd0222b4
20 changed files with 8665 additions and 24 deletions
@@ -0,0 +1,121 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2004-2013. 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/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+#include <boost/container/devector.hpp>
+#include <boost/container/allocator.hpp>
+#include <boost/container/detail/next_capacity.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+using namespace boost::container;
+
+template<class Unsigned, class DevectorType>
+void test_stored_size_type_impl()
+{
+   DevectorType v;
+   typedef typename DevectorType::size_type    size_type;
+   typedef typename DevectorType::value_type   value_type;
+   size_type const max = Unsigned(-1);
+   v.resize(5);
+   v.resize(max);
+   BOOST_TEST_THROWS(v.resize(max+1),                    std::exception);
+   BOOST_TEST_THROWS(v.push_back(value_type(1)),         std::exception);
+   BOOST_TEST_THROWS(v.insert(v.begin(), value_type(1)), std::exception);
+   BOOST_TEST_THROWS(v.emplace(v.begin(), value_type(1)),std::exception);
+   BOOST_TEST_THROWS(v.reserve(max+1),                   std::exception);
+   BOOST_TEST_THROWS(DevectorType v2(max+1),             std::exception);
+}
+
+template<class Unsigned>
+void test_stored_size_type()
+{
+   #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+   using options_t = devector_options_t< stored_size<Unsigned> >;
+   #else
+   typedef typename devector_options
+      < stored_size<Unsigned> >::type options_t;
+   #endif
+
+   //Test first with a typical allocator
+   {
+      typedef devector<unsigned char, new_allocator<unsigned char>, options_t> devector_t;
+      test_stored_size_type_impl<Unsigned, devector_t>();
+   }
+   //Test with a V2 allocator
+   {
+      typedef devector<unsigned char, allocator<unsigned char>, options_t> devector_t;
+      test_stored_size_type_impl<Unsigned, devector_t>();
+   }
+}
+
+void test_growth_factor_50()
+{
+   #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+   using options_t = devector_options_t< growth_factor<growth_factor_50> >;
+   #else
+   typedef devector_options
+      < growth_factor<growth_factor_50> >::type options_t;
+   #endif
+
+   devector<int, new_allocator<int>, options_t> v;
+
+   v.resize(5);
+   v.resize(v.capacity());
+   std::size_t old_capacity = v.capacity();
+   v.push_back(0);
+   std::size_t new_capacity = v.capacity();
+   BOOST_TEST(new_capacity == old_capacity + old_capacity/2);
+}
+
+void test_growth_factor_60()
+{
+   #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+   using options_t = devector_options_t< growth_factor<growth_factor_60> >;
+   #else
+   typedef devector_options
+      < growth_factor<growth_factor_60> >::type options_t;
+   #endif
+
+   devector<int, new_allocator<int>, options_t> v;
+
+   v.resize(5);
+   v.resize(v.capacity());
+   std::size_t old_capacity = v.capacity();
+   v.push_back(0);
+   std::size_t new_capacity = v.capacity();
+   BOOST_TEST(new_capacity == old_capacity + 3*old_capacity/5);
+}
+
+void test_growth_factor_100()
+{
+   #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+   using options_t = devector_options_t< growth_factor<growth_factor_100> >;
+   #else
+   typedef devector_options
+      < growth_factor<growth_factor_100> >::type options_t;
+   #endif
+
+   devector<int, new_allocator<int>, options_t> v;
+
+   v.resize(5);
+   v.resize(v.capacity());
+   std::size_t old_capacity = v.capacity();
+   v.push_back(0);
+   std::size_t new_capacity = v.capacity();
+   BOOST_TEST(new_capacity == 2*old_capacity);
+}
+
+int main()
+{
+   test_growth_factor_50();
+   test_growth_factor_60();
+   test_growth_factor_100();
+   test_stored_size_type<unsigned char>();
+   test_stored_size_type<unsigned short>();
+   return ::boost::report_errors();
+}