#define STARTS_WITH(string, needle) (strncasecmp((string), (needle), strlen((needle))) == 0)
#define CIRCLEQ_NEXT_OR_NULL(head, elm, field) (CIRCLEQ_NEXT(elm, field) != CIRCLEQ_END(head) ? CIRCLEQ_NEXT(elm, field) : NULL)
#define CIRCLEQ_PREV_OR_NULL(head, elm, field) (CIRCLEQ_PREV(elm, field) != CIRCLEQ_END(head) ? CIRCLEQ_PREV(elm, field) : NULL)
-#define FOR_TABLE(workspace) \
- for (int cols = 0; cols < (workspace)->cols; cols++) \
- for (int rows = 0; rows < (workspace)->rows; rows++)
#define NODES_FOREACH(head) \
for (Con *child = (Con *)-1; (child == (Con *)-1) && ((child = 0), true);) \