use macro instead of static function
diff --git a/xxhash.h b/xxhash.h
index fbbb66e..1082690 100644
--- a/xxhash.h
+++ b/xxhash.h
@@ -2395,40 +2395,31 @@
#endif /* XXH_NO_STDLIB */
#ifndef XXH_memcpy
-# include <string.h>
/*!
* @internal
* @brief XXH_memcpy() macro can be redirected at compile time
*/
-static void* XXH_memcpy(void* dest, const void* src, size_t size)
-{
- return memcpy(dest,src,size);
-}
+# include <string.h>
+# define XXH_memcpy memcpy
#endif
#ifndef XXH_memset
-# include <string.h>
/*!
* @internal
* @brief XXH_memset() macro can be redirected at compile time
*/
-static void* XXH_memset(void* dest, int value, size_t size)
-{
- return memset(dest,value,size);
-}
+# include <string.h>
+# define XXH_memset memset
#endif
#ifndef XXH_memcmp
-/* Note: only needed by XXH128 */
-# include <string.h>
/*!
* @internal
* @brief XXH_memcmp() macro can be redirected at compile time
+ * Note: only needed by XXH128.
*/
-static int XXH_memcmp(void* dest, const void* src, size_t size)
-{
- return memcmp(dest,src,size);
-}
+# include <string.h>
+# define XXH_memcmp memcmp
#endif
