init

The-Nook-GamesTM/Fundamentals/parsing_aux.c

@@ -0,0 +1,35 @@
+#include "parsing.h"
+#include <stdlib.h>
+
+struct queue *enqueue(struct queue *queue, struct node *node) {
+    struct queue *new_elt = malloc(sizeof(struct queue));
+    if (!new_elt)
+        return queue;
+    new_elt->node = node;
+    new_elt->next = NULL;
+    if (!queue) {
+        return new_elt;
+    }
+    struct queue *it = queue;
+    while (it->next) {
+        it = it->next;
+    }
+    it->next = new_elt;
+    return queue;
+}
+
+struct node *dequeue(struct queue **queue) {
+    if (!queue || !*queue)
+        return NULL;
+    struct node *res = (*queue)->node;
+    struct queue *temp = *queue;
+    *queue = (*queue)->next;
+    free(temp);
+    return res;
+}
+
+void queue_destroy(struct queue *queue) {
+    while (queue) {
+        dequeue(&queue);
+    }
+}