From 976683836ebcb54269e8f660a8c0addf5229b02a Mon Sep 17 00:00:00 2001
From: Daniel James <daniel@calamity.org.uk>
Date: Wed, 13 Apr 2005 20:24:50 +0000
Subject: [PATCH] Borland workaround for hashing arrays.

[SVN r28226]
---
 include/boost/functional/hash/hash.hpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/boost/functional/hash/hash.hpp b/include/boost/functional/hash/hash.hpp
index e0e1b42..5a0f560 100644
--- a/include/boost/functional/hash/hash.hpp
+++ b/include/boost/functional/hash/hash.hpp
@@ -197,11 +197,31 @@ namespace boost
     }
 
 #if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+#if !defined(__BORLANDC__)
     template< class T, unsigned N >
     inline std::size_t hash_value(const T (&array)[N])
     {
         return hash_range(array, array+N);
     }
+#else
+    // On Borland some type information was lost in the call to hash_combine
+    // from hash_range, so inline everything here so that doesn't happen.
+    template< class T, unsigned N >
+    inline std::size_t hash_value(const T (&array)[N])
+    {
+        std::size_t seed = 0;
+        T const* first = array;
+        T const* last = array + N;
+
+        for(; first != last; ++first)
+        {
+            seed ^= hash_detail::call_hash<T>::call(*first)
+                + 0x9e3779b9 + (seed<<6) + (seed>>2);
+        }
+        
+        return seed;
+    }
+#endif
 #endif
 
 #if BOOST_WORKAROUND(__GNUC__, < 3) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)