@@ 267-280 (lines=14) @@ | ||
264 | /** |
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265 | * {@inheritDoc} |
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266 | */ |
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267 | protected function deleteBeginning() { |
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268 | // if only there is an element |
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269 | if($this->head->next === $this->head) { |
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270 | $temp = $this->head; |
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271 | $this->head = null; |
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272 | return $temp->data; |
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273 | } |
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274 | ||
275 | $temp = $this->head; |
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276 | $this->head = &$this->head->next; |
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277 | $this->tail->next = &$this->head; |
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278 | ||
279 | return $temp->data; |
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280 | } |
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281 | ||
282 | /** |
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283 | * {@inheritDoc} |
@@ 269-281 (lines=13) @@ | ||
266 | * |
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267 | * @return mixed the data stored in the node. |
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268 | */ |
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269 | protected function deleteBeginning() { |
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270 | // if only there is an element |
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271 | if($this->head->next === $this->head) { |
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272 | $temp = $this->head; |
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273 | $this->head = null; |
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274 | } else { |
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275 | $temp = $this->head; |
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276 | $this->head = &$this->head->next; |
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277 | $this->tail->next = &$this->head; |
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278 | ||
279 | } |
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280 | return $temp->data; |
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281 | } |
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282 | ||
283 | /** |
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284 | * Deletes at the specified position and returns the data stored. |