comparison DEPENDENCIES/generic/include/boost/intrusive/detail/array_initializer.hpp @ 102:f46d142149f5

Whoops, finish that update

+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga  2014-2014
+//
+// 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/intrusive for documentation.
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTRUSIVE_DETAIL_ARRAY_INITIALIZER_HPP
+#define BOOST_INTRUSIVE_DETAIL_ARRAY_INITIALIZER_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/core/no_exceptions_support.hpp>
+
+namespace boost {
+namespace intrusive {
+namespace detail {
+
+//This is not standard, but should work with all compilers
+union max_align
+{
+   char        char_;
+   short       short_;
+   int         int_;
+   long        long_;
+   #ifdef BOOST_HAS_LONG_LONG
+   ::boost::long_long_type  long_long_;
+   #endif
+   float       float_;
+   double      double_;
+   long double long_double_;
+   void *      void_ptr_;
+};
+
+template<class T, std::size_t N>
+class array_initializer
+{
+   public:
+   template<class CommonInitializer>
+   array_initializer(const CommonInitializer &init)
+   {
+      char *init_buf = (char*)rawbuf;
+      std::size_t i = 0;
+      BOOST_TRY{
+         for(; i != N; ++i){
+            new(init_buf)T(init);
+            init_buf += sizeof(T);
+         }
+      }
+      BOOST_CATCH(...){
+         while(i--){
+            init_buf -= sizeof(T);
+            ((T*)init_buf)->~T();
+         }
+         BOOST_RETHROW;
+      }
+      BOOST_CATCH_END
+   }
+
+   operator T* ()
+   {  return (T*)(rawbuf);  }
+
+   operator const T*() const
+   {  return (const T*)(rawbuf);  }
+
+   ~array_initializer()
+   {
+      char *init_buf = (char*)rawbuf + N*sizeof(T);
+      for(std::size_t i = 0; i != N; ++i){
+         init_buf -= sizeof(T);
+         ((T*)init_buf)->~T();
+      }
+   }
+
+   private:
+   detail::max_align rawbuf[(N*sizeof(T)-1)/sizeof(detail::max_align)+1];
+};
+
+}  //namespace detail{
+}  //namespace intrusive{
+}  //namespace boost{
+
+#endif //BOOST_INTRUSIVE_DETAIL_ARRAY_INITIALIZER_HPP