fixed Visual warnings

dictBuilder/dibcli.c

@@ -22,6 +22,15 @@
   - zstd source repository : https://github.com/Cyan4973/zstd
 */
 
+/* **************************************
+*  Compiler Specifics
+****************************************/
+/* Disable some Visual warning messages */
+#ifdef _MSC_VER
+#  pragma warning(disable : 4127)                /* disable: C4127: conditional expression is constant */
+#endif
+
+
 /*-************************************
 *  Includes
 **************************************/

dictBuilder/dictBuilder.c

@@ -79,7 +79,7 @@
 
 #define DICTLISTSIZE 10000
 #define MEMMULT 11
-static const size_t maxMemory = (sizeof(size_t)==4)  ?  (2 GB - 64 MB) : (size_t)(3 GB) * MEMMULT;
+static const size_t maxMemory = (sizeof(size_t) == 4) ? (2 GB - 64 MB) : ((size_t)(512 MB) << sizeof(size_t));
 
 #define NOISELENGTH 32
 #define PRIME1   2654435761U