diff --git a/include/boost/functional/hash/hash.hpp b/include/boost/functional/hash/hash.hpp
index 4244989..5515efd 100644
--- a/include/boost/functional/hash/hash.hpp
+++ b/include/boost/functional/hash/hash.hpp
@@ -474,7 +474,10 @@ namespace boost
 #if !BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590)
             return boost::hash_value(v);
 #else
-            return boost::hash_value<T*>(v);
+            std::size_t x = static_cast<std::size_t>(
+                reinterpret_cast<std::ptrdiff_t>(v));
+
+            return x + (x >> 3);
 #endif
         }
     };
@@ -496,7 +499,10 @@ namespace boost
 #if !BOOST_WORKAROUND(__SUNPRO_CC, <= 590)
                     return boost::hash_value(val);
 #else
-                    return boost::hash_value<T>(val);
+                    std::size_t x = static_cast<std::size_t>(
+                        reinterpret_cast<std::ptrdiff_t>(val));
+
+                    return x + (x >> 3);
 #endif
                 }
             };