1 files changed, 155 insertions, 0 deletions
diff --git a/src/boost/libs/container/test/default_init_test.hpp b/src/boost/libs/container/test/default_init_test.hpp
new file mode 100644
index 00000000..2e83a361
--- /dev/null
+++ b/src/boost/libs/container/test/default_init_test.hpp
@@ -0,0 +1,155 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2013-2013. 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.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_TEST_DEFAULT_INIT_TEST_HEADER
+#define BOOST_CONTAINER_TEST_DEFAULT_INIT_TEST_HEADER
+
+#include <boost/container/detail/config_begin.hpp>
+#include <cstddef>
+
+namespace boost{
+namespace container {
+namespace test{
+
+//
+template<int Dummy = 0>
+class default_init_allocator_base
+{
+   protected:
+   static unsigned char s_pattern;
+   static bool          s_ascending;
+
+   public:
+   static void reset_pattern(unsigned char value)
+   {  s_pattern = value;   }
+
+   static void set_ascending(bool enable)
+   {  s_ascending = enable;   }
+};
+
+template<int Dummy>
+unsigned char default_init_allocator_base<Dummy>::s_pattern = 0u;
+
+template<int Dummy>
+bool default_init_allocator_base<Dummy>::s_ascending = true;
+
+template<class Integral>
+class default_init_allocator
+   : public default_init_allocator_base<0>
+{
+   typedef default_init_allocator_base<0> base_t;
+   public:
+   typedef Integral value_type;
+
+   default_init_allocator()
+   {}
+
+   template <class U>
+   default_init_allocator(default_init_allocator<U>)
+   {}
+
+   Integral* allocate(std::size_t n)
+   {
+      //Initialize memory to a pattern
+      const std::size_t max = sizeof(Integral)*n;
+      unsigned char *puc_raw = ::new unsigned char[max];
+
+      if(base_t::s_ascending){
+         for(std::size_t i = 0; i != max; ++i){
+            puc_raw[i] = static_cast<unsigned char>(s_pattern++);
+         }
+      }
+      else{
+         for(std::size_t i = 0; i != max; ++i){
+            puc_raw[i] = static_cast<unsigned char>(s_pattern--);
+         }
+      }
+      return (Integral*)puc_raw;;
+   }
+
+   void deallocate(Integral *p, std::size_t)
+   {  delete[] (unsigned char*)p;  }
+};
+
+template<class Integral>
+inline bool check_ascending_byte_pattern(const Integral&t)
+{
+   const unsigned char *pch = &reinterpret_cast<const unsigned char &>(t);
+   const std::size_t max = sizeof(Integral);
+   for(std::size_t i = 1; i != max; ++i){
+      if( (pch[i-1] != ((unsigned char)(pch[i]-1u))) ){
+         return false;
+      }
+   }
+   return true;
+}
+
+template<class Integral>
+inline bool check_descending_byte_pattern(const Integral&t)
+{
+   const unsigned char *pch = &reinterpret_cast<const unsigned char &>(t);
+   const std::size_t max = sizeof(Integral);
+   for(std::size_t i = 1; i != max; ++i){
+      if( (pch[i-1] != ((unsigned char)(pch[i]+1u))) ){
+         return false;
+      }
+   }
+   return true;
+}
+
+template<class IntDefaultInitAllocVector>
+bool default_init_test()//Test for default initialization
+{
+   const std::size_t Capacity = 100;
+
+   {
+      test::default_init_allocator<int>::reset_pattern(0);
+      test::default_init_allocator<int>::set_ascending(true);
+      IntDefaultInitAllocVector v(Capacity, default_init);
+      typename IntDefaultInitAllocVector::iterator it = v.begin();
+      //Compare with the pattern
+      for(std::size_t i = 0; i != Capacity; ++i, ++it){
+         if(!test::check_ascending_byte_pattern(*it))
+            return false;
+      }
+   }
+   {
+      test::default_init_allocator<int>::reset_pattern(0);
+      test::default_init_allocator<int>::set_ascending(true);
+      IntDefaultInitAllocVector v(Capacity, default_init, typename IntDefaultInitAllocVector::allocator_type());
+      typename IntDefaultInitAllocVector::iterator it = v.begin();
+      //Compare with the pattern
+      for(std::size_t i = 0; i != Capacity; ++i, ++it){
+         if(!test::check_ascending_byte_pattern(*it))
+            return false;
+      }
+   }
+   {
+      test::default_init_allocator<int>::reset_pattern(100);
+      test::default_init_allocator<int>::set_ascending(false);
+      IntDefaultInitAllocVector v;
+      v.resize(Capacity, default_init);
+      typename IntDefaultInitAllocVector::iterator it = v.begin();
+      //Compare with the pattern
+      for(std::size_t i = 0; i != Capacity; ++i, ++it){
+         if(!test::check_descending_byte_pattern(*it))
+            return false;
+      }
+   }
+   return true;
+}
+
+}  //namespace test{
+}  //namespace container {
+}  //namespace boost{
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif //BOOST_CONTAINER_TEST_DEFAULT_INIT_TEST_HEADER