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266
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1 #include "../context.h"
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2 #include <stdio.h>
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3
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4 Queue* createSingleLinkedQueue(struct Context* context) {
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280
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5 struct Queue* queue = new Queue();
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266
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6 struct SingleLinkedQueue* singleLinkedQueue = new SingleLinkedQueue();
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7 queue->queue = (union Data*)singleLinkedQueue;
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8 singleLinkedQueue->top = NULL;
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9 singleLinkedQueue->last = NULL;
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10 queue->take = C_takeSingleLinkedQueue;
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11 queue->put = C_putSingleLinkedQueue;
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12 queue->isEmpty = C_isEmptySingleLinkedQueue;
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13 queue->clear = C_clearSingleLinkedQueue;
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14 return queue;
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15 }
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16
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17 void printQueue1(union Data* data) {
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18 struct Node* node = &data->Element.data->Node;
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19 if (node == NULL) {
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20 printf("NULL");
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21 } else {
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22 printf("key = %d ,", node->key);
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23 printQueue1((union Data*)data->Element.next);
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24 }
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25 }
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26
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27 void printQueue(union Data* data) {
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28 printQueue1(data);
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29 printf("\n");
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30 }
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31
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32 __code clearSingleLinkedQueue(struct SingleLinkedQueue* queue, __code next(...)) {
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33 queue->top = NULL;
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34 goto next(...);
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35 }
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36
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37 __code putSingleLinkedQueue(struct SingleLinkedQueue* queue, union Data* data, __code next(...)) {
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38 Element* element = new Element();
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39 element->next = NULL;
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40 element->data = data;
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41 if (queue->last) {
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42 Element* last = queue->last;
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43 last->next = element;
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44 queue->last = element;
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45 } else {
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46 queue->top = element;
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47 queue->last = element;
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48 }
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49 goto next(...);
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50 }
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51
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272
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52 __code takeSingleLinkedQueue(struct SingleLinkedQueue* queue, __code next(union Data* data, ...)) {
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266
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53 if (queue->top) {
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54 data = queue->top->data;
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55 queue->top = queue->top->next;
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56 } else {
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57 data = NULL;
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58 }
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59 goto next(data, ...);
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60 }
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61
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62 __code isEmptySingleLinkedQueue(struct SingleLinkedQueue* queue, __code next(...), __code whenEmpty(...)) {
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63 if (queue->top)
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64 goto next(...);
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65 else
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66 goto whenEmpty(...);
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67 }
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68
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