Add WIP bulk functions for DICT/OA

m-core.h

@@ -143,6 +143,13 @@
 #endif
 
 
+/* Prefetch . */
+#if defined(__GNUC__)
+# define M_PREFETCH(p)           __builtin_prefetch((p), 0, 0)
+#else
+# define M_PREFETCH(p)           (void) 0
+#endif
+
 /* Ignore some warnings detected by some compilers in the library.
  * Whatever we do, there is some warnings that cannot be fixed.
  * So they are ignored in order to avoid polluting the user with
@@ -2895,11 +2902,15 @@ M_PARSE_DEFAULT_TYPE_DEF(m_core_parse_ldouble, long double, strtold, )
 
 
 /* C++ doesn't support flexible array within a structure.
-   Let's define at least one element for an array. */
+   Let's define at least one element for an array.
+   It doesn't also support VLA usage in function prototype.
+ */
 #ifdef __cplusplus
 # define M_MIN_FLEX_ARRAY_SIZE 1
+# define M_VLA(n)
 #else
 # define M_MIN_FLEX_ARRAY_SIZE 
+# define M_VLA(n) n
 #endif
 
 #if M_USE_STDARG && M_USE_STDIO