Merge branch 'develop'

doc/move.qbk

@@ -762,8 +762,10 @@ Many thanks to all boosters that have tested, reviewed and improved the library.
 
 [section:release_notes Release Notes]
 
-[section:release_notes_boost_1_58_01 Boost 1.58.1 Release]
+[section:release_notes_boost_1_59 Boost 1.59 Release]
 
+   *  Changed `unique_ptr`'s converting constructor taking the source by value in C++03 compilers to allow simple conversions
+      from convertible types returned by value.
    *  Fixed bug:
       * [@https://svn.boost.org/trac/boost/ticket/11229 Trac #11229: ['"vector incorrectly copies move-only objects using memcpy"]],
 

include/boost/move/core.hpp

@@ -53,10 +53,10 @@
 
    #include <boost/move/detail/type_traits.hpp>
 
-   #if 1
-      #define BOOST_MOVE_TO_RV_CAST(RV_TYPE, ARG) static_cast<RV_TYPE>(ARG)
-   #else
+   #if defined(BOOST_MOVE_ADDRESS_SANITIZER_ON)
       #define BOOST_MOVE_TO_RV_CAST(RV_TYPE, ARG) reinterpret_cast<RV_TYPE>(ARG)
+   #else
+      #define BOOST_MOVE_TO_RV_CAST(RV_TYPE, ARG) static_cast<RV_TYPE>(ARG)
    #endif
 
    //Move emulation rv breaks standard aliasing rules so add workarounds for some compilers

include/boost/move/detail/workaround.hpp

@@ -23,6 +23,16 @@
    #define BOOST_MOVE_PERFECT_FORWARDING
 #endif
 
+#if defined(__has_feature)
+   #define BOOST_MOVE_HAS_FEATURE __has_feature
+#else
+   #define BOOST_MOVE_HAS_FEATURE(x) 0
+#endif
+
+#if BOOST_MOVE_HAS_FEATURE(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
+   #define BOOST_MOVE_ADDRESS_SANITIZER_ON
+#endif
+
 //Macros for documentation purposes. For code, expands to the argument
 #define BOOST_MOVE_IMPDEF(TYPE) TYPE
 #define BOOST_MOVE_SEEDOC(TYPE) TYPE