+#define array_elt(array, n) ((array).data[(n)])
+#define array_ptr(array, n) ((array).data + (n))
+
+#define foreach(var, array) \
+ for (uint32_t __Ai = 0 ; __Ai < (array).len ; ++__Ai) { \
+ var = array_ptr(array, __Ai);
+
+#define array_foreach(array, action) \
+ for (uint32_t __Ai = 0 ; __Ai < (array).len ; ++__Ai) { \
+ action(array_ptr(array, __Ai)); \
+ }
+#define array_deep_wipe(array, wipe) \
+ do { \
+ array_foreach(array, wipe); \
+ array_wipe(array); \
+ } while (0)
+
+#define array_len(array) (array).len
+#define array_size(array) (array).size
+#define array_elt_len(array) sizeof(*(array).data)
+#define array_byte_len(array) ((array).len * array_elt_len(array))
+
+#define array_lock(array) \
+ ((array).locked \
+ || (mlock((array).data, array_byte_len(array)) == 0 \
+ && ((array).locked = true)))
+#define array_unlock(array) \
+ if ((array).locked) { \
+ (void)munlock((array).data, array_byte_len(array)); \
+ (array).locked = false; \
+ }