first commit

include/nva/util.h

@@ -0,0 +1,19 @@
+#ifndef UTIL_H
+#define UTIL_H
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof *(a))
+#define ADDARRAY(a, e) \
+	do { \
+	if ((a ## num) >= (a ## max)) { \
+		if (!(a ## max)) \
+			(a ## max) = 16; \
+		else \
+			(a ## max) *= 2; \
+		(a) = realloc((a), (a ## max)*sizeof(*(a))); \
+	} \
+	(a)[(a ## num)++] = (e); \
+	} while(0)
+
+
+#endif
+