Fix warning on 32 bit Windows.

Author: ned14

include/quickcpplib/algorithm/bitwise_trie.hpp

@@ -148,12 +148,12 @@ namespace algorithm
 #if defined(_MSC_VER) && !defined(__cplusplus_cli)
         {
           unsigned long bitpos;
-#if defined(_M_IA64) || defined(_M_X64) || defined(WIN64)
+#if defined(_M_IA64) || defined(_M_X64) || defined(WIN64) || defined(_WIN64) 
           assert(8 == sizeof(size_t));
           _BitScanReverse64(&bitpos, value);
 #else
           assert(4 == sizeof(size_t));
-          _BitScanReverse(&bitpos, value);
+          _BitScanReverse(&bitpos, (unsigned) value);
 #endif
           return (unsigned) bitpos;
         }